Home / 20,710.49-31,062.08-6,669.95

Finding the Fourth Proportional to 20,710.49, 31,062.08 and 6,669.95

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Solution

The fourth proportional to 20,710.49, 31,062.08 and 6,669.95 is: 10,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.49 : 31,062.08 = 6,669.95 : x
  2. Step 2: Convert to fraction form
    20,710.49/31,062.08 = 6,669.95/x
  3. Step 3: Cross multiply
    20,710.49x = 31,062.08 × 6,669.95
  4. Step 4: Simplify right side
    20,710.49x = 207,182,381.86
  5. Step 5: Solve for x
    x = 207,182,381.86/20,710.49
  6. Step 6: Final answer
    x = 10,003.74

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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.