Home / 28,000.72-42,015.66-11,373.04

Finding the Fourth Proportional to 28,000.72, 42,015.66 and 11,373.04

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Solution

The fourth proportional to 28,000.72, 42,015.66 and 11,373.04 is: 17,065.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.72 : 42,015.66 = 11,373.04 : x
  2. Step 2: Convert to fraction form
    28,000.72/42,015.66 = 11,373.04/x
  3. Step 3: Cross multiply
    28,000.72x = 42,015.66 × 11,373.04
  4. Step 4: Simplify right side
    28,000.72x = 477,845,781.81
  5. Step 5: Solve for x
    x = 477,845,781.81/28,000.72
  6. Step 6: Final answer
    x = 17,065.48

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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.