Home / 22,692.51-31,293.68-15,139.15

Finding the Fourth Proportional to 22,692.51, 31,293.68 and 15,139.15

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Solution

The fourth proportional to 22,692.51, 31,293.68 and 15,139.15 is: 20,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,692.51 : 31,293.68 = 15,139.15 : x
  2. Step 2: Convert to fraction form
    22,692.51/31,293.68 = 15,139.15/x
  3. Step 3: Cross multiply
    22,692.51x = 31,293.68 × 15,139.15
  4. Step 4: Simplify right side
    22,692.51x = 473,759,561.64
  5. Step 5: Solve for x
    x = 473,759,561.64/22,692.51
  6. Step 6: Final answer
    x = 20,877.35

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Half scale
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Double scale
Find fourth proportional to 22,693.51, 31,295.05 and 15,140.15
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.