Home / 28,007.64-42,018.62-9,292.90

Finding the Fourth Proportional to 28,007.64, 42,018.62 and 9,292.90

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Solution

The fourth proportional to 28,007.64, 42,018.62 and 9,292.90 is: 13,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.64 : 42,018.62 = 9,292.90 : x
  2. Step 2: Convert to fraction form
    28,007.64/42,018.62 = 9,292.90/x
  3. Step 3: Cross multiply
    28,007.64x = 42,018.62 × 9,292.90
  4. Step 4: Simplify right side
    28,007.64x = 390,474,833.80
  5. Step 5: Solve for x
    x = 390,474,833.80/28,007.64
  6. Step 6: Final answer
    x = 13,941.73

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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.