Home / 39,779.80-59,671.14-13,487.08

Finding the Fourth Proportional to 39,779.80, 59,671.14 and 13,487.08

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Solution

The fourth proportional to 39,779.80, 59,671.14 and 13,487.08 is: 20,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,779.80 : 59,671.14 = 13,487.08 : x
  2. Step 2: Convert to fraction form
    39,779.80/59,671.14 = 13,487.08/x
  3. Step 3: Cross multiply
    39,779.80x = 59,671.14 × 13,487.08
  4. Step 4: Simplify right side
    39,779.80x = 804,789,438.87
  5. Step 5: Solve for x
    x = 804,789,438.87/39,779.80
  6. Step 6: Final answer
    x = 20,231.11

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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.