Home / 21,671.03-32,479.95-12,318.88

Finding the Fourth Proportional to 21,671.03, 32,479.95 and 12,318.88

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Solution

The fourth proportional to 21,671.03, 32,479.95 and 12,318.88 is: 18,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671.03 : 32,479.95 = 12,318.88 : x
  2. Step 2: Convert to fraction form
    21,671.03/32,479.95 = 12,318.88/x
  3. Step 3: Cross multiply
    21,671.03x = 32,479.95 × 12,318.88
  4. Step 4: Simplify right side
    21,671.03x = 400,116,606.46
  5. Step 5: Solve for x
    x = 400,116,606.46/21,671.03
  6. Step 6: Final answer
    x = 18,463.20

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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.