Home / 21,258.20-31,888.66-6,468.24

Finding the Fourth Proportional to 21,258.20, 31,888.66 and 6,468.24

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Solution

The fourth proportional to 21,258.20, 31,888.66 and 6,468.24 is: 9,702.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.20 : 31,888.66 = 6,468.24 : x
  2. Step 2: Convert to fraction form
    21,258.20/31,888.66 = 6,468.24/x
  3. Step 3: Cross multiply
    21,258.20x = 31,888.66 × 6,468.24
  4. Step 4: Simplify right side
    21,258.20x = 206,263,506.16
  5. Step 5: Solve for x
    x = 206,263,506.16/21,258.20
  6. Step 6: Final answer
    x = 9,702.77

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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.