Home / 21,417.20-32,116.20-8,265.20

Finding the Fourth Proportional to 21,417.20, 32,116.20 and 8,265.20

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Solution

The fourth proportional to 21,417.20, 32,116.20 and 8,265.20 is: 12,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.20 : 32,116.20 = 8,265.20 : x
  2. Step 2: Convert to fraction form
    21,417.20/32,116.20 = 8,265.20/x
  3. Step 3: Cross multiply
    21,417.20x = 32,116.20 × 8,265.20
  4. Step 4: Simplify right side
    21,417.20x = 265,446,816.24
  5. Step 5: Solve for x
    x = 265,446,816.24/21,417.20
  6. Step 6: Final answer
    x = 12,394.10

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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.