Home / 22,142.28-30,555.63-12,070.56

Finding the Fourth Proportional to 22,142.28, 30,555.63 and 12,070.56

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Solution

The fourth proportional to 22,142.28, 30,555.63 and 12,070.56 is: 16,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142.28 : 30,555.63 = 12,070.56 : x
  2. Step 2: Convert to fraction form
    22,142.28/30,555.63 = 12,070.56/x
  3. Step 3: Cross multiply
    22,142.28x = 30,555.63 × 12,070.56
  4. Step 4: Simplify right side
    22,142.28x = 368,823,541.91
  5. Step 5: Solve for x
    x = 368,823,541.91/22,142.28
  6. Step 6: Final answer
    x = 16,656.98

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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.