Home / 30,758.39-42,445.00-17,330.43

Finding the Fourth Proportional to 30,758.39, 42,445.00 and 17,330.43

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Solution

The fourth proportional to 30,758.39, 42,445.00 and 17,330.43 is: 23,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,758.39 : 42,445.00 = 17,330.43 : x
  2. Step 2: Convert to fraction form
    30,758.39/42,445.00 = 17,330.43/x
  3. Step 3: Cross multiply
    30,758.39x = 42,445.00 × 17,330.43
  4. Step 4: Simplify right side
    30,758.39x = 735,590,282.18
  5. Step 5: Solve for x
    x = 735,590,282.18/30,758.39
  6. Step 6: Final answer
    x = 23,915.11

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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.