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Finding the Fourth Proportional to 28,008.80, 41,973.60 and 15,534.32

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Solution

The fourth proportional to 28,008.80, 41,973.60 and 15,534.32 is: 23,279.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.80 : 41,973.60 = 15,534.32 : x
  2. Step 2: Convert to fraction form
    28,008.80/41,973.60 = 15,534.32/x
  3. Step 3: Cross multiply
    28,008.80x = 41,973.60 × 15,534.32
  4. Step 4: Simplify right side
    28,008.80x = 652,031,333.95
  5. Step 5: Solve for x
    x = 652,031,333.95/28,008.80
  6. Step 6: Final answer
    x = 23,279.52

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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.