Home / 26,641.91-39,951.48-9,990.40

Finding the Fourth Proportional to 26,641.91, 39,951.48 and 9,990.40

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Solution

The fourth proportional to 26,641.91, 39,951.48 and 9,990.40 is: 14,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,641.91 : 39,951.48 = 9,990.40 : x
  2. Step 2: Convert to fraction form
    26,641.91/39,951.48 = 9,990.40/x
  3. Step 3: Cross multiply
    26,641.91x = 39,951.48 × 9,990.40
  4. Step 4: Simplify right side
    26,641.91x = 399,131,265.79
  5. Step 5: Solve for x
    x = 399,131,265.79/26,641.91
  6. Step 6: Final answer
    x = 14,981.33

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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.