Home / 28,156.08-38,854.98-15,408.96

Finding the Fourth Proportional to 28,156.08, 38,854.98 and 15,408.96

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Solution

The fourth proportional to 28,156.08, 38,854.98 and 15,408.96 is: 21,264.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.08 : 38,854.98 = 15,408.96 : x
  2. Step 2: Convert to fraction form
    28,156.08/38,854.98 = 15,408.96/x
  3. Step 3: Cross multiply
    28,156.08x = 38,854.98 × 15,408.96
  4. Step 4: Simplify right side
    28,156.08x = 598,714,832.62
  5. Step 5: Solve for x
    x = 598,714,832.62/28,156.08
  6. Step 6: Final answer
    x = 21,264.14

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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.