Home / 39,765.31-59,646.41-13,470.06

Finding the Fourth Proportional to 39,765.31, 59,646.41 and 13,470.06

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Solution

The fourth proportional to 39,765.31, 59,646.41 and 13,470.06 is: 20,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.31 : 59,646.41 = 13,470.06 : x
  2. Step 2: Convert to fraction form
    39,765.31/59,646.41 = 13,470.06/x
  3. Step 3: Cross multiply
    39,765.31x = 59,646.41 × 13,470.06
  4. Step 4: Simplify right side
    39,765.31x = 803,440,721.48
  5. Step 5: Solve for x
    x = 803,440,721.48/39,765.31
  6. Step 6: Final answer
    x = 20,204.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.