Home / 30,458.90-42,034.14-17,031.66

Finding the Fourth Proportional to 30,458.90, 42,034.14 and 17,031.66

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Solution

The fourth proportional to 30,458.90, 42,034.14 and 17,031.66 is: 23,504.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,458.90 : 42,034.14 = 17,031.66 : x
  2. Step 2: Convert to fraction form
    30,458.90/42,034.14 = 17,031.66/x
  3. Step 3: Cross multiply
    30,458.90x = 42,034.14 × 17,031.66
  4. Step 4: Simplify right side
    30,458.90x = 715,911,180.87
  5. Step 5: Solve for x
    x = 715,911,180.87/30,458.90
  6. Step 6: Final answer
    x = 23,504.17

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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.