Home / 22,688.64-31,312.38-12,616.92

Finding the Fourth Proportional to 22,688.64, 31,312.38 and 12,616.92

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Solution

The fourth proportional to 22,688.64, 31,312.38 and 12,616.92 is: 17,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,688.64 : 31,312.38 = 12,616.92 : x
  2. Step 2: Convert to fraction form
    22,688.64/31,312.38 = 12,616.92/x
  3. Step 3: Cross multiply
    22,688.64x = 31,312.38 × 12,616.92
  4. Step 4: Simplify right side
    22,688.64x = 395,065,793.47
  5. Step 5: Solve for x
    x = 395,065,793.47/22,688.64
  6. Step 6: Final answer
    x = 17,412.49

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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.