Home / 28,462.03-42,695.10-10,931.86

Finding the Fourth Proportional to 28,462.03, 42,695.10 and 10,931.86

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Solution

The fourth proportional to 28,462.03, 42,695.10 and 10,931.86 is: 16,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.03 : 42,695.10 = 10,931.86 : x
  2. Step 2: Convert to fraction form
    28,462.03/42,695.10 = 10,931.86/x
  3. Step 3: Cross multiply
    28,462.03x = 42,695.10 × 10,931.86
  4. Step 4: Simplify right side
    28,462.03x = 466,736,587.75
  5. Step 5: Solve for x
    x = 466,736,587.75/28,462.03
  6. Step 6: Final answer
    x = 16,398.57

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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.