Home / 26,488.40-39,737.52-8,720.06

Finding the Fourth Proportional to 26,488.40, 39,737.52 and 8,720.06

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Solution

The fourth proportional to 26,488.40, 39,737.52 and 8,720.06 is: 13,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,488.40 : 39,737.52 = 8,720.06 : x
  2. Step 2: Convert to fraction form
    26,488.40/39,737.52 = 8,720.06/x
  3. Step 3: Cross multiply
    26,488.40x = 39,737.52 × 8,720.06
  4. Step 4: Simplify right side
    26,488.40x = 346,513,359.96
  5. Step 5: Solve for x
    x = 346,513,359.96/26,488.40
  6. Step 6: Final answer
    x = 13,081.70

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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.