Home / 21,068.10-31,603.77-6,275.88

Finding the Fourth Proportional to 21,068.10, 31,603.77 and 6,275.88

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Solution

The fourth proportional to 21,068.10, 31,603.77 and 6,275.88 is: 9,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.10 : 31,603.77 = 6,275.88 : x
  2. Step 2: Convert to fraction form
    21,068.10/31,603.77 = 6,275.88/x
  3. Step 3: Cross multiply
    21,068.10x = 31,603.77 × 6,275.88
  4. Step 4: Simplify right side
    21,068.10x = 198,341,468.07
  5. Step 5: Solve for x
    x = 198,341,468.07/21,068.10
  6. Step 6: Final answer
    x = 9,414.30

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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.