Home / 21,652.44-29,875.32-13,154.34

Finding the Fourth Proportional to 21,652.44, 29,875.32 and 13,154.34

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Solution

The fourth proportional to 21,652.44, 29,875.32 and 13,154.34 is: 18,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652.44 : 29,875.32 = 13,154.34 : x
  2. Step 2: Convert to fraction form
    21,652.44/29,875.32 = 13,154.34/x
  3. Step 3: Cross multiply
    21,652.44x = 29,875.32 × 13,154.34
  4. Step 4: Simplify right side
    21,652.44x = 392,990,116.89
  5. Step 5: Solve for x
    x = 392,990,116.89/21,652.44
  6. Step 6: Final answer
    x = 18,149.92

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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.