Home / 39,917.10-59,875.64-13,621.84

Finding the Fourth Proportional to 39,917.10, 59,875.64 and 13,621.84

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Solution

The fourth proportional to 39,917.10, 59,875.64 and 13,621.84 is: 20,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,917.10 : 59,875.64 = 13,621.84 : x
  2. Step 2: Convert to fraction form
    39,917.10/59,875.64 = 13,621.84/x
  3. Step 3: Cross multiply
    39,917.10x = 59,875.64 × 13,621.84
  4. Step 4: Simplify right side
    39,917.10x = 815,616,387.98
  5. Step 5: Solve for x
    x = 815,616,387.98/39,917.10
  6. Step 6: Final answer
    x = 20,432.76

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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.