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Finding the Fourth Proportional to 30,597.47, 45,841.89 and 12,788.88

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Solution

The fourth proportional to 30,597.47, 45,841.89 and 12,788.88 is: 19,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,597.47 : 45,841.89 = 12,788.88 : x
  2. Step 2: Convert to fraction form
    30,597.47/45,841.89 = 12,788.88/x
  3. Step 3: Cross multiply
    30,597.47x = 45,841.89 × 12,788.88
  4. Step 4: Simplify right side
    30,597.47x = 586,266,430.18
  5. Step 5: Solve for x
    x = 586,266,430.18/30,597.47
  6. Step 6: Final answer
    x = 19,160.62

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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.