Home / 31,410.79-43,337.11-17,979.53

Finding the Fourth Proportional to 31,410.79, 43,337.11 and 17,979.53

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Solution

The fourth proportional to 31,410.79, 43,337.11 and 17,979.53 is: 24,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410.79 : 43,337.11 = 17,979.53 : x
  2. Step 2: Convert to fraction form
    31,410.79/43,337.11 = 17,979.53/x
  3. Step 3: Cross multiply
    31,410.79x = 43,337.11 × 17,979.53
  4. Step 4: Simplify right side
    31,410.79x = 779,181,022.00
  5. Step 5: Solve for x
    x = 779,181,022.00/31,410.79
  6. Step 6: Final answer
    x = 24,806.16

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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.