Home / 30,462.12-42,034.86-17,031.51

Finding the Fourth Proportional to 30,462.12, 42,034.86 and 17,031.51

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Solution

The fourth proportional to 30,462.12, 42,034.86 and 17,031.51 is: 23,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,462.12 : 42,034.86 = 17,031.51 : x
  2. Step 2: Convert to fraction form
    30,462.12/42,034.86 = 17,031.51/x
  3. Step 3: Cross multiply
    30,462.12x = 42,034.86 × 17,031.51
  4. Step 4: Simplify right side
    30,462.12x = 715,917,138.44
  5. Step 5: Solve for x
    x = 715,917,138.44/30,462.12
  6. Step 6: Final answer
    x = 23,501.88

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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.