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Finding the Fourth Proportional to 30,525, 42,122.40 and 17,095.92

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Solution

The fourth proportional to 30,525, 42,122.40 and 17,095.92 is: 23,591.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525 : 42,122.40 = 17,095.92 : x
  2. Step 2: Convert to fraction form
    30,525/42,122.40 = 17,095.92/x
  3. Step 3: Cross multiply
    30,525x = 42,122.40 × 17,095.92
  4. Step 4: Simplify right side
    30,525x = 720,121,180.61
  5. Step 5: Solve for x
    x = 720,121,180.61/30,525
  6. Step 6: Final answer
    x = 23,591.19

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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.