Home / 21,482.20-29,645.40-12,051.04

Finding the Fourth Proportional to 21,482.20, 29,645.40 and 12,051.04

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Solution

The fourth proportional to 21,482.20, 29,645.40 and 12,051.04 is: 16,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.20 : 29,645.40 = 12,051.04 : x
  2. Step 2: Convert to fraction form
    21,482.20/29,645.40 = 12,051.04/x
  3. Step 3: Cross multiply
    21,482.20x = 29,645.40 × 12,051.04
  4. Step 4: Simplify right side
    21,482.20x = 357,257,901.22
  5. Step 5: Solve for x
    x = 357,257,901.22/21,482.20
  6. Step 6: Final answer
    x = 16,630.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.