Home / 38,235.12-52,765.08-21,467.76

Finding the Fourth Proportional to 38,235.12, 52,765.08 and 21,467.76

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Solution

The fourth proportional to 38,235.12, 52,765.08 and 21,467.76 is: 29,625.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,235.12 : 52,765.08 = 21,467.76 : x
  2. Step 2: Convert to fraction form
    38,235.12/52,765.08 = 21,467.76/x
  3. Step 3: Cross multiply
    38,235.12x = 52,765.08 × 21,467.76
  4. Step 4: Simplify right side
    38,235.12x = 1,132,748,073.82
  5. Step 5: Solve for x
    x = 1,132,748,073.82/38,235.12
  6. Step 6: Final answer
    x = 29,625.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.