Home / 21,141.61-31,703.15-6,347.01

Finding the Fourth Proportional to 21,141.61, 31,703.15 and 6,347.01

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Solution

The fourth proportional to 21,141.61, 31,703.15 and 6,347.01 is: 9,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141.61 : 31,703.15 = 6,347.01 : x
  2. Step 2: Convert to fraction form
    21,141.61/31,703.15 = 6,347.01/x
  3. Step 3: Cross multiply
    21,141.61x = 31,703.15 × 6,347.01
  4. Step 4: Simplify right side
    21,141.61x = 201,220,130.80
  5. Step 5: Solve for x
    x = 201,220,130.80/21,141.61
  6. Step 6: Final answer
    x = 9,517.73

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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.