Home / 26,250.90-39,399.10-13,779.74

Finding the Fourth Proportional to 26,250.90, 39,399.10 and 13,779.74

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Solution

The fourth proportional to 26,250.90, 39,399.10 and 13,779.74 is: 20,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,250.90 : 39,399.10 = 13,779.74 : x
  2. Step 2: Convert to fraction form
    26,250.90/39,399.10 = 13,779.74/x
  3. Step 3: Cross multiply
    26,250.90x = 39,399.10 × 13,779.74
  4. Step 4: Simplify right side
    26,250.90x = 542,909,354.23
  5. Step 5: Solve for x
    x = 542,909,354.23/26,250.90
  6. Step 6: Final answer
    x = 20,681.55

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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.