Home / 30,718.22-42,375.60-17,963.06

Finding the Fourth Proportional to 30,718.22, 42,375.60 and 17,963.06

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Solution

The fourth proportional to 30,718.22, 42,375.60 and 17,963.06 is: 24,779.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718.22 : 42,375.60 = 17,963.06 : x
  2. Step 2: Convert to fraction form
    30,718.22/42,375.60 = 17,963.06/x
  3. Step 3: Cross multiply
    30,718.22x = 42,375.60 × 17,963.06
  4. Step 4: Simplify right side
    30,718.22x = 761,195,445.34
  5. Step 5: Solve for x
    x = 761,195,445.34/30,718.22
  6. Step 6: Final answer
    x = 24,779.93

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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.