Home / 17,921.15-24,731.50-9,855.15

Finding the Fourth Proportional to 17,921.15, 24,731.50 and 9,855.15

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Solution

The fourth proportional to 17,921.15, 24,731.50 and 9,855.15 is: 13,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.15 : 24,731.50 = 9,855.15 : x
  2. Step 2: Convert to fraction form
    17,921.15/24,731.50 = 9,855.15/x
  3. Step 3: Cross multiply
    17,921.15x = 24,731.50 × 9,855.15
  4. Step 4: Simplify right side
    17,921.15x = 243,732,642.23
  5. Step 5: Solve for x
    x = 243,732,642.23/17,921.15
  6. Step 6: Final answer
    x = 13,600.28

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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.