Home / 28,000.06-42,002.37-9,279.34

Finding the Fourth Proportional to 28,000.06, 42,002.37 and 9,279.34

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Solution

The fourth proportional to 28,000.06, 42,002.37 and 9,279.34 is: 13,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.06 : 42,002.37 = 9,279.34 : x
  2. Step 2: Convert to fraction form
    28,000.06/42,002.37 = 9,279.34/x
  3. Step 3: Cross multiply
    28,000.06x = 42,002.37 × 9,279.34
  4. Step 4: Simplify right side
    28,000.06x = 389,754,272.04
  5. Step 5: Solve for x
    x = 389,754,272.04/28,000.06
  6. Step 6: Final answer
    x = 13,919.77

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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.