Home / 31,451.17-43,402.53-18,875.92

Finding the Fourth Proportional to 31,451.17, 43,402.53 and 18,875.92

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Solution

The fourth proportional to 31,451.17, 43,402.53 and 18,875.92 is: 26,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.17 : 43,402.53 = 18,875.92 : x
  2. Step 2: Convert to fraction form
    31,451.17/43,402.53 = 18,875.92/x
  3. Step 3: Cross multiply
    31,451.17x = 43,402.53 × 18,875.92
  4. Step 4: Simplify right side
    31,451.17x = 819,262,684.08
  5. Step 5: Solve for x
    x = 819,262,684.08/31,451.17
  6. Step 6: Final answer
    x = 26,048.72

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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.