Home / 22,221.61-30,666.40-12,150.47

Finding the Fourth Proportional to 22,221.61, 30,666.40 and 12,150.47

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Solution

The fourth proportional to 22,221.61, 30,666.40 and 12,150.47 is: 16,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.61 : 30,666.40 = 12,150.47 : x
  2. Step 2: Convert to fraction form
    22,221.61/30,666.40 = 12,150.47/x
  3. Step 3: Cross multiply
    22,221.61x = 30,666.40 × 12,150.47
  4. Step 4: Simplify right side
    22,221.61x = 372,611,219.50
  5. Step 5: Solve for x
    x = 372,611,219.50/22,221.61
  6. Step 6: Final answer
    x = 16,767.97

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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.