Home / 42,221.79-58,274.10-30,154.95

Finding the Fourth Proportional to 42,221.79, 58,274.10 and 30,154.95

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Solution

The fourth proportional to 42,221.79, 58,274.10 and 30,154.95 is: 41,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,221.79 : 58,274.10 = 30,154.95 : x
  2. Step 2: Convert to fraction form
    42,221.79/58,274.10 = 30,154.95/x
  3. Step 3: Cross multiply
    42,221.79x = 58,274.10 × 30,154.95
  4. Step 4: Simplify right side
    42,221.79x = 1,757,252,571.80
  5. Step 5: Solve for x
    x = 1,757,252,571.80/42,221.79
  6. Step 6: Final answer
    x = 41,619.57

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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.