Home / 21,248.16-31,877.48-6,456.30

Finding the Fourth Proportional to 21,248.16, 31,877.48 and 6,456.30

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Solution

The fourth proportional to 21,248.16, 31,877.48 and 6,456.30 is: 9,686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.16 : 31,877.48 = 6,456.30 : x
  2. Step 2: Convert to fraction form
    21,248.16/31,877.48 = 6,456.30/x
  3. Step 3: Cross multiply
    21,248.16x = 31,877.48 × 6,456.30
  4. Step 4: Simplify right side
    21,248.16x = 205,810,574.12
  5. Step 5: Solve for x
    x = 205,810,574.12/21,248.16
  6. Step 6: Final answer
    x = 9,686.04

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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.