Home / 30,701.59-42,373.28-19,377.26

Finding the Fourth Proportional to 30,701.59, 42,373.28 and 19,377.26

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Solution

The fourth proportional to 30,701.59, 42,373.28 and 19,377.26 is: 26,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,701.59 : 42,373.28 = 19,377.26 : x
  2. Step 2: Convert to fraction form
    30,701.59/42,373.28 = 19,377.26/x
  3. Step 3: Cross multiply
    30,701.59x = 42,373.28 × 19,377.26
  4. Step 4: Simplify right side
    30,701.59x = 821,078,063.61
  5. Step 5: Solve for x
    x = 821,078,063.61/30,701.59
  6. Step 6: Final answer
    x = 26,743.83

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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.