Home / 22,708.42-31,332.69-13,756.30

Finding the Fourth Proportional to 22,708.42, 31,332.69 and 13,756.30

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Solution

The fourth proportional to 22,708.42, 31,332.69 and 13,756.30 is: 18,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,708.42 : 31,332.69 = 13,756.30 : x
  2. Step 2: Convert to fraction form
    22,708.42/31,332.69 = 13,756.30/x
  3. Step 3: Cross multiply
    22,708.42x = 31,332.69 × 13,756.30
  4. Step 4: Simplify right side
    22,708.42x = 431,021,883.45
  5. Step 5: Solve for x
    x = 431,021,883.45/22,708.42
  6. Step 6: Final answer
    x = 18,980.71

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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.