Home / 31,101.58-42,921.12-16,954.66

Finding the Fourth Proportional to 31,101.58, 42,921.12 and 16,954.66

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Solution

The fourth proportional to 31,101.58, 42,921.12 and 16,954.66 is: 23,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,101.58 : 42,921.12 = 16,954.66 : x
  2. Step 2: Convert to fraction form
    31,101.58/42,921.12 = 16,954.66/x
  3. Step 3: Cross multiply
    31,101.58x = 42,921.12 × 16,954.66
  4. Step 4: Simplify right side
    31,101.58x = 727,712,996.42
  5. Step 5: Solve for x
    x = 727,712,996.42/31,101.58
  6. Step 6: Final answer
    x = 23,397.94

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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.