Home / 22,636.89-31,251.28-15,477.57

Finding the Fourth Proportional to 22,636.89, 31,251.28 and 15,477.57

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Solution

The fourth proportional to 22,636.89, 31,251.28 and 15,477.57 is: 21,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,636.89 : 31,251.28 = 15,477.57 : x
  2. Step 2: Convert to fraction form
    22,636.89/31,251.28 = 15,477.57/x
  3. Step 3: Cross multiply
    22,636.89x = 31,251.28 × 15,477.57
  4. Step 4: Simplify right side
    22,636.89x = 483,693,873.79
  5. Step 5: Solve for x
    x = 483,693,873.79/22,636.89
  6. Step 6: Final answer
    x = 21,367.51

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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.