Home / 28,111.42-42,167.13-7,334.74

Finding the Fourth Proportional to 28,111.42, 42,167.13 and 7,334.74

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Solution

The fourth proportional to 28,111.42, 42,167.13 and 7,334.74 is: 11,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111.42 : 42,167.13 = 7,334.74 : x
  2. Step 2: Convert to fraction form
    28,111.42/42,167.13 = 7,334.74/x
  3. Step 3: Cross multiply
    28,111.42x = 42,167.13 × 7,334.74
  4. Step 4: Simplify right side
    28,111.42x = 309,284,935.10
  5. Step 5: Solve for x
    x = 309,284,935.10/28,111.42
  6. Step 6: Final answer
    x = 11,002.11

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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.