Home / 15,730.74-21,692.34-14,365.08

Finding the Fourth Proportional to 15,730.74, 21,692.34 and 14,365.08

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Solution

The fourth proportional to 15,730.74, 21,692.34 and 14,365.08 is: 19,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730.74 : 21,692.34 = 14,365.08 : x
  2. Step 2: Convert to fraction form
    15,730.74/21,692.34 = 14,365.08/x
  3. Step 3: Cross multiply
    15,730.74x = 21,692.34 × 14,365.08
  4. Step 4: Simplify right side
    15,730.74x = 311,612,199.49
  5. Step 5: Solve for x
    x = 311,612,199.49/15,730.74
  6. Step 6: Final answer
    x = 19,809.13

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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.