Home / 21,052.09-31,575.70-5,470.93

Finding the Fourth Proportional to 21,052.09, 31,575.70 and 5,470.93

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Solution

The fourth proportional to 21,052.09, 31,575.70 and 5,470.93 is: 8,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.09 : 31,575.70 = 5,470.93 : x
  2. Step 2: Convert to fraction form
    21,052.09/31,575.70 = 5,470.93/x
  3. Step 3: Cross multiply
    21,052.09x = 31,575.70 × 5,470.93
  4. Step 4: Simplify right side
    21,052.09x = 172,748,444.40
  5. Step 5: Solve for x
    x = 172,748,444.40/21,052.09
  6. Step 6: Final answer
    x = 8,205.76

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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.