Home / 22,210.68-30,652.08-12,779.04

Finding the Fourth Proportional to 22,210.68, 30,652.08 and 12,779.04

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Solution

The fourth proportional to 22,210.68, 30,652.08 and 12,779.04 is: 17,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.68 : 30,652.08 = 12,779.04 : x
  2. Step 2: Convert to fraction form
    22,210.68/30,652.08 = 12,779.04/x
  3. Step 3: Cross multiply
    22,210.68x = 30,652.08 × 12,779.04
  4. Step 4: Simplify right side
    22,210.68x = 391,704,156.40
  5. Step 5: Solve for x
    x = 391,704,156.40/22,210.68
  6. Step 6: Final answer
    x = 17,635.85

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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.