Home / 28,032.66-42,020.64-18,178.20

Finding the Fourth Proportional to 28,032.66, 42,020.64 and 18,178.20

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Solution

The fourth proportional to 28,032.66, 42,020.64 and 18,178.20 is: 27,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.66 : 42,020.64 = 18,178.20 : x
  2. Step 2: Convert to fraction form
    28,032.66/42,020.64 = 18,178.20/x
  3. Step 3: Cross multiply
    28,032.66x = 42,020.64 × 18,178.20
  4. Step 4: Simplify right side
    28,032.66x = 763,859,598.05
  5. Step 5: Solve for x
    x = 763,859,598.05/28,032.66
  6. Step 6: Final answer
    x = 27,248.92

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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.