Home / 21,380.76-32,066.28-10,281.74

Finding the Fourth Proportional to 21,380.76, 32,066.28 and 10,281.74

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Solution

The fourth proportional to 21,380.76, 32,066.28 and 10,281.74 is: 15,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.76 : 32,066.28 = 10,281.74 : x
  2. Step 2: Convert to fraction form
    21,380.76/32,066.28 = 10,281.74/x
  3. Step 3: Cross multiply
    21,380.76x = 32,066.28 × 10,281.74
  4. Step 4: Simplify right side
    21,380.76x = 329,696,993.40
  5. Step 5: Solve for x
    x = 329,696,993.40/21,380.76
  6. Step 6: Final answer
    x = 15,420.27

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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.