Home / 30,703.62-42,370.65-17,274.90

Finding the Fourth Proportional to 30,703.62, 42,370.65 and 17,274.90

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Solution

The fourth proportional to 30,703.62, 42,370.65 and 17,274.90 is: 23,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,703.62 : 42,370.65 = 17,274.90 : x
  2. Step 2: Convert to fraction form
    30,703.62/42,370.65 = 17,274.90/x
  3. Step 3: Cross multiply
    30,703.62x = 42,370.65 × 17,274.90
  4. Step 4: Simplify right side
    30,703.62x = 731,948,741.69
  5. Step 5: Solve for x
    x = 731,948,741.69/30,703.62
  6. Step 6: Final answer
    x = 23,839.17

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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.