Home / 21,482.32-32,223.42-12,118.09

Finding the Fourth Proportional to 21,482.32, 32,223.42 and 12,118.09

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Solution

The fourth proportional to 21,482.32, 32,223.42 and 12,118.09 is: 18,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.32 : 32,223.42 = 12,118.09 : x
  2. Step 2: Convert to fraction form
    21,482.32/32,223.42 = 12,118.09/x
  3. Step 3: Cross multiply
    21,482.32x = 32,223.42 × 12,118.09
  4. Step 4: Simplify right side
    21,482.32x = 390,486,223.11
  5. Step 5: Solve for x
    x = 390,486,223.11/21,482.32
  6. Step 6: Final answer
    x = 18,177.10

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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.