Home / 22,302.84-30,779.28-12,872.01

Finding the Fourth Proportional to 22,302.84, 30,779.28 and 12,872.01

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Solution

The fourth proportional to 22,302.84, 30,779.28 and 12,872.01 is: 17,764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,302.84 : 30,779.28 = 12,872.01 : x
  2. Step 2: Convert to fraction form
    22,302.84/30,779.28 = 12,872.01/x
  3. Step 3: Cross multiply
    22,302.84x = 30,779.28 × 12,872.01
  4. Step 4: Simplify right side
    22,302.84x = 396,191,199.95
  5. Step 5: Solve for x
    x = 396,191,199.95/22,302.84
  6. Step 6: Final answer
    x = 17,764.16

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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.