Home / 22,702.28-31,303.30-15,985.76

Finding the Fourth Proportional to 22,702.28, 31,303.30 and 15,985.76

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Solution

The fourth proportional to 22,702.28, 31,303.30 and 15,985.76 is: 22,042.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,702.28 : 31,303.30 = 15,985.76 : x
  2. Step 2: Convert to fraction form
    22,702.28/31,303.30 = 15,985.76/x
  3. Step 3: Cross multiply
    22,702.28x = 31,303.30 × 15,985.76
  4. Step 4: Simplify right side
    22,702.28x = 500,407,041.01
  5. Step 5: Solve for x
    x = 500,407,041.01/22,702.28
  6. Step 6: Final answer
    x = 22,042.15

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1.5x scale

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.