Home / 31,505.72-43,479.86-17,358.57

Finding the Fourth Proportional to 31,505.72, 43,479.86 and 17,358.57

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Solution

The fourth proportional to 31,505.72, 43,479.86 and 17,358.57 is: 23,955.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.72 : 43,479.86 = 17,358.57 : x
  2. Step 2: Convert to fraction form
    31,505.72/43,479.86 = 17,358.57/x
  3. Step 3: Cross multiply
    31,505.72x = 43,479.86 × 17,358.57
  4. Step 4: Simplify right side
    31,505.72x = 754,748,106.61
  5. Step 5: Solve for x
    x = 754,748,106.61/31,505.72
  6. Step 6: Final answer
    x = 23,955.91

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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.