Home / 39,717.81-59,585.28-13,421.97

Finding the Fourth Proportional to 39,717.81, 59,585.28 and 13,421.97

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Solution

The fourth proportional to 39,717.81, 59,585.28 and 13,421.97 is: 20,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,717.81 : 59,585.28 = 13,421.97 : x
  2. Step 2: Convert to fraction form
    39,717.81/59,585.28 = 13,421.97/x
  3. Step 3: Cross multiply
    39,717.81x = 59,585.28 × 13,421.97
  4. Step 4: Simplify right side
    39,717.81x = 799,751,840.60
  5. Step 5: Solve for x
    x = 799,751,840.60/39,717.81
  6. Step 6: Final answer
    x = 20,135.85

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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.