Home / 31,177.40-43,025.87-17,031.15

Finding the Fourth Proportional to 31,177.40, 43,025.87 and 17,031.15

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Solution

The fourth proportional to 31,177.40, 43,025.87 and 17,031.15 is: 23,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,177.40 : 43,025.87 = 17,031.15 : x
  2. Step 2: Convert to fraction form
    31,177.40/43,025.87 = 17,031.15/x
  3. Step 3: Cross multiply
    31,177.40x = 43,025.87 × 17,031.15
  4. Step 4: Simplify right side
    31,177.40x = 732,779,960.69
  5. Step 5: Solve for x
    x = 732,779,960.69/31,177.40
  6. Step 6: Final answer
    x = 23,503.57

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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.