Home / 30,701.46-42,373.11-19,377.13

Finding the Fourth Proportional to 30,701.46, 42,373.11 and 19,377.13

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Solution

The fourth proportional to 30,701.46, 42,373.11 and 19,377.13 is: 26,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,701.46 : 42,373.11 = 19,377.13 : x
  2. Step 2: Convert to fraction form
    30,701.46/42,373.11 = 19,377.13/x
  3. Step 3: Cross multiply
    30,701.46x = 42,373.11 × 19,377.13
  4. Step 4: Simplify right side
    30,701.46x = 821,069,260.97
  5. Step 5: Solve for x
    x = 821,069,260.97/30,701.46
  6. Step 6: Final answer
    x = 26,743.66

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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.