Home / 22,061.52-30,438.72-20,953.44

Finding the Fourth Proportional to 22,061.52, 30,438.72 and 20,953.44

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Solution

The fourth proportional to 22,061.52, 30,438.72 and 20,953.44 is: 28,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,061.52 : 30,438.72 = 20,953.44 : x
  2. Step 2: Convert to fraction form
    22,061.52/30,438.72 = 20,953.44/x
  3. Step 3: Cross multiply
    22,061.52x = 30,438.72 × 20,953.44
  4. Step 4: Simplify right side
    22,061.52x = 637,795,893.20
  5. Step 5: Solve for x
    x = 637,795,893.20/22,061.52
  6. Step 6: Final answer
    x = 28,909.88

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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.