Home / 19,001.17-28,483.53-12,432.88

Finding the Fourth Proportional to 19,001.17, 28,483.53 and 12,432.88

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Solution

The fourth proportional to 19,001.17, 28,483.53 and 12,432.88 is: 18,637.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.17 : 28,483.53 = 12,432.88 : x
  2. Step 2: Convert to fraction form
    19,001.17/28,483.53 = 12,432.88/x
  3. Step 3: Cross multiply
    19,001.17x = 28,483.53 × 12,432.88
  4. Step 4: Simplify right side
    19,001.17x = 354,132,310.47
  5. Step 5: Solve for x
    x = 354,132,310.47/19,001.17
  6. Step 6: Final answer
    x = 18,637.39

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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.