Home / 18,332.49-25,276.64-15,494.79

Finding the Fourth Proportional to 18,332.49, 25,276.64 and 15,494.79

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Solution

The fourth proportional to 18,332.49, 25,276.64 and 15,494.79 is: 21,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332.49 : 25,276.64 = 15,494.79 : x
  2. Step 2: Convert to fraction form
    18,332.49/25,276.64 = 15,494.79/x
  3. Step 3: Cross multiply
    18,332.49x = 25,276.64 × 15,494.79
  4. Step 4: Simplify right side
    18,332.49x = 391,656,151.23
  5. Step 5: Solve for x
    x = 391,656,151.23/18,332.49
  6. Step 6: Final answer
    x = 21,364.05

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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.