Home / 21,040.10-31,565.02-6,248.70

Finding the Fourth Proportional to 21,040.10, 31,565.02 and 6,248.70

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Solution

The fourth proportional to 21,040.10, 31,565.02 and 6,248.70 is: 9,374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.10 : 31,565.02 = 6,248.70 : x
  2. Step 2: Convert to fraction form
    21,040.10/31,565.02 = 6,248.70/x
  3. Step 3: Cross multiply
    21,040.10x = 31,565.02 × 6,248.70
  4. Step 4: Simplify right side
    21,040.10x = 197,240,340.47
  5. Step 5: Solve for x
    x = 197,240,340.47/21,040.10
  6. Step 6: Final answer
    x = 9,374.50

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1.5x scale

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.