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Finding the Fourth Proportional to 30,152.32, 41,584.80 and 19,398.88

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Solution

The fourth proportional to 30,152.32, 41,584.80 and 19,398.88 is: 26,754.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.32 : 41,584.80 = 19,398.88 : x
  2. Step 2: Convert to fraction form
    30,152.32/41,584.80 = 19,398.88/x
  3. Step 3: Cross multiply
    30,152.32x = 41,584.80 × 19,398.88
  4. Step 4: Simplify right side
    30,152.32x = 806,698,545.02
  5. Step 5: Solve for x
    x = 806,698,545.02/30,152.32
  6. Step 6: Final answer
    x = 26,754.11

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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.