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Finding the Fourth Proportional to 30,392.60, 45,593.88 and 12,862.58

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Solution

The fourth proportional to 30,392.60, 45,593.88 and 12,862.58 is: 19,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,392.60 : 45,593.88 = 12,862.58 : x
  2. Step 2: Convert to fraction form
    30,392.60/45,593.88 = 12,862.58/x
  3. Step 3: Cross multiply
    30,392.60x = 45,593.88 × 12,862.58
  4. Step 4: Simplify right side
    30,392.60x = 586,454,929.01
  5. Step 5: Solve for x
    x = 586,454,929.01/30,392.60
  6. Step 6: Final answer
    x = 19,295.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.