Home / 26,385.59-36,410.91-15,781.07

Finding the Fourth Proportional to 26,385.59, 36,410.91 and 15,781.07

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Solution

The fourth proportional to 26,385.59, 36,410.91 and 15,781.07 is: 21,777.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,385.59 : 36,410.91 = 15,781.07 : x
  2. Step 2: Convert to fraction form
    26,385.59/36,410.91 = 15,781.07/x
  3. Step 3: Cross multiply
    26,385.59x = 36,410.91 × 15,781.07
  4. Step 4: Simplify right side
    26,385.59x = 574,603,119.47
  5. Step 5: Solve for x
    x = 574,603,119.47/26,385.59
  6. Step 6: Final answer
    x = 21,777.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.