Home / 39,779.60-59,672.04-13,475.36

Finding the Fourth Proportional to 39,779.60, 59,672.04 and 13,475.36

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Solution

The fourth proportional to 39,779.60, 59,672.04 and 13,475.36 is: 20,213.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,779.60 : 59,672.04 = 13,475.36 : x
  2. Step 2: Convert to fraction form
    39,779.60/59,672.04 = 13,475.36/x
  3. Step 3: Cross multiply
    39,779.60x = 59,672.04 × 13,475.36
  4. Step 4: Simplify right side
    39,779.60x = 804,102,220.93
  5. Step 5: Solve for x
    x = 804,102,220.93/39,779.60
  6. Step 6: Final answer
    x = 20,213.93

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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.