Home / 31,681.14-43,715.61-18,251.34

Finding the Fourth Proportional to 31,681.14, 43,715.61 and 18,251.34

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Solution

The fourth proportional to 31,681.14, 43,715.61 and 18,251.34 is: 25,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.14 : 43,715.61 = 18,251.34 : x
  2. Step 2: Convert to fraction form
    31,681.14/43,715.61 = 18,251.34/x
  3. Step 3: Cross multiply
    31,681.14x = 43,715.61 × 18,251.34
  4. Step 4: Simplify right side
    31,681.14x = 797,868,461.42
  5. Step 5: Solve for x
    x = 797,868,461.42/31,681.14
  6. Step 6: Final answer
    x = 25,184.34

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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.