Home / 26,139.60-39,211.52-15,681.08

Finding the Fourth Proportional to 26,139.60, 39,211.52 and 15,681.08

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Solution

The fourth proportional to 26,139.60, 39,211.52 and 15,681.08 is: 23,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,139.60 : 39,211.52 = 15,681.08 : x
  2. Step 2: Convert to fraction form
    26,139.60/39,211.52 = 15,681.08/x
  3. Step 3: Cross multiply
    26,139.60x = 39,211.52 × 15,681.08
  4. Step 4: Simplify right side
    26,139.60x = 614,878,982.04
  5. Step 5: Solve for x
    x = 614,878,982.04/26,139.60
  6. Step 6: Final answer
    x = 23,522.89

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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.