Home / 39,886.96-59,847.72-21,397.36

Finding the Fourth Proportional to 39,886.96, 59,847.72 and 21,397.36

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Solution

The fourth proportional to 39,886.96, 59,847.72 and 21,397.36 is: 32,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,886.96 : 59,847.72 = 21,397.36 : x
  2. Step 2: Convert to fraction form
    39,886.96/59,847.72 = 21,397.36/x
  3. Step 3: Cross multiply
    39,886.96x = 59,847.72 × 21,397.36
  4. Step 4: Simplify right side
    39,886.96x = 1,280,583,210.02
  5. Step 5: Solve for x
    x = 1,280,583,210.02/39,886.96
  6. Step 6: Final answer
    x = 32,105.31

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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.