Home / 21,052.53-29,050.52-13,088.61

Finding the Fourth Proportional to 21,052.53, 29,050.52 and 13,088.61

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Solution

The fourth proportional to 21,052.53, 29,050.52 and 13,088.61 is: 18,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.53 : 29,050.52 = 13,088.61 : x
  2. Step 2: Convert to fraction form
    21,052.53/29,050.52 = 13,088.61/x
  3. Step 3: Cross multiply
    21,052.53x = 29,050.52 × 13,088.61
  4. Step 4: Simplify right side
    21,052.53x = 380,230,861.13
  5. Step 5: Solve for x
    x = 380,230,861.13/21,052.53
  6. Step 6: Final answer
    x = 18,061.05

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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.