Home / 28,293.33-39,047.76-15,718.08

Finding the Fourth Proportional to 28,293.33, 39,047.76 and 15,718.08

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Solution

The fourth proportional to 28,293.33, 39,047.76 and 15,718.08 is: 21,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.33 : 39,047.76 = 15,718.08 : x
  2. Step 2: Convert to fraction form
    28,293.33/39,047.76 = 15,718.08/x
  3. Step 3: Cross multiply
    28,293.33x = 39,047.76 × 15,718.08
  4. Step 4: Simplify right side
    28,293.33x = 613,755,815.50
  5. Step 5: Solve for x
    x = 613,755,815.50/28,293.33
  6. Step 6: Final answer
    x = 21,692.60

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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.