Home / 30,422.78-41,987.67-17,851.58

Finding the Fourth Proportional to 30,422.78, 41,987.67 and 17,851.58

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Solution

The fourth proportional to 30,422.78, 41,987.67 and 17,851.58 is: 24,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,422.78 : 41,987.67 = 17,851.58 : x
  2. Step 2: Convert to fraction form
    30,422.78/41,987.67 = 17,851.58/x
  3. Step 3: Cross multiply
    30,422.78x = 41,987.67 × 17,851.58
  4. Step 4: Simplify right side
    30,422.78x = 749,546,250.02
  5. Step 5: Solve for x
    x = 749,546,250.02/30,422.78
  6. Step 6: Final answer
    x = 24,637.66

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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.