Home / 22,306.88-30,783.45-12,875.44

Finding the Fourth Proportional to 22,306.88, 30,783.45 and 12,875.44

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Solution

The fourth proportional to 22,306.88, 30,783.45 and 12,875.44 is: 17,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,306.88 : 30,783.45 = 12,875.44 : x
  2. Step 2: Convert to fraction form
    22,306.88/30,783.45 = 12,875.44/x
  3. Step 3: Cross multiply
    22,306.88x = 30,783.45 × 12,875.44
  4. Step 4: Simplify right side
    22,306.88x = 396,350,463.47
  5. Step 5: Solve for x
    x = 396,350,463.47/22,306.88
  6. Step 6: Final answer
    x = 17,768.08

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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.