Home / 30,672.90-42,328.19-17,060.82

Finding the Fourth Proportional to 30,672.90, 42,328.19 and 17,060.82

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Solution

The fourth proportional to 30,672.90, 42,328.19 and 17,060.82 is: 23,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.90 : 42,328.19 = 17,060.82 : x
  2. Step 2: Convert to fraction form
    30,672.90/42,328.19 = 17,060.82/x
  3. Step 3: Cross multiply
    30,672.90x = 42,328.19 × 17,060.82
  4. Step 4: Simplify right side
    30,672.90x = 722,153,630.52
  5. Step 5: Solve for x
    x = 722,153,630.52/30,672.90
  6. Step 6: Final answer
    x = 23,543.70

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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.