Home / 28,897.28-43,355.18-12,271.28

Finding the Fourth Proportional to 28,897.28, 43,355.18 and 12,271.28

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Solution

The fourth proportional to 28,897.28, 43,355.18 and 12,271.28 is: 18,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.28 : 43,355.18 = 12,271.28 : x
  2. Step 2: Convert to fraction form
    28,897.28/43,355.18 = 12,271.28/x
  3. Step 3: Cross multiply
    28,897.28x = 43,355.18 × 12,271.28
  4. Step 4: Simplify right side
    28,897.28x = 532,023,275.10
  5. Step 5: Solve for x
    x = 532,023,275.10/28,897.28
  6. Step 6: Final answer
    x = 18,410.85

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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.