Home / 22,240.68-30,688.74-12,807.72

Finding the Fourth Proportional to 22,240.68, 30,688.74 and 12,807.72

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Solution

The fourth proportional to 22,240.68, 30,688.74 and 12,807.72 is: 17,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,240.68 : 30,688.74 = 12,807.72 : x
  2. Step 2: Convert to fraction form
    22,240.68/30,688.74 = 12,807.72/x
  3. Step 3: Cross multiply
    22,240.68x = 30,688.74 × 12,807.72
  4. Step 4: Simplify right side
    22,240.68x = 393,052,789.07
  5. Step 5: Solve for x
    x = 393,052,789.07/22,240.68
  6. Step 6: Final answer
    x = 17,672.70

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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.