Home / 21,630.16-32,446.12-6,839.36

Finding the Fourth Proportional to 21,630.16, 32,446.12 and 6,839.36

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Solution

The fourth proportional to 21,630.16, 32,446.12 and 6,839.36 is: 10,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.16 : 32,446.12 = 6,839.36 : x
  2. Step 2: Convert to fraction form
    21,630.16/32,446.12 = 6,839.36/x
  3. Step 3: Cross multiply
    21,630.16x = 32,446.12 × 6,839.36
  4. Step 4: Simplify right side
    21,630.16x = 221,910,695.28
  5. Step 5: Solve for x
    x = 221,910,695.28/21,630.16
  6. Step 6: Final answer
    x = 10,259.32

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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.