Home / 30,757.21-42,444.76-17,332.78

Finding the Fourth Proportional to 30,757.21, 42,444.76 and 17,332.78

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Solution

The fourth proportional to 30,757.21, 42,444.76 and 17,332.78 is: 23,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,757.21 : 42,444.76 = 17,332.78 : x
  2. Step 2: Convert to fraction form
    30,757.21/42,444.76 = 17,332.78/x
  3. Step 3: Cross multiply
    30,757.21x = 42,444.76 × 17,332.78
  4. Step 4: Simplify right side
    30,757.21x = 735,685,687.23
  5. Step 5: Solve for x
    x = 735,685,687.23/30,757.21
  6. Step 6: Final answer
    x = 23,919.13

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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.