Home / 42,017.36-62,987-15,702.08

Finding the Fourth Proportional to 42,017.36, 62,987 and 15,702.08

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Solution

The fourth proportional to 42,017.36, 62,987 and 15,702.08 is: 23,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,017.36 : 62,987 = 15,702.08 : x
  2. Step 2: Convert to fraction form
    42,017.36/62,987 = 15,702.08/x
  3. Step 3: Cross multiply
    42,017.36x = 62,987 × 15,702.08
  4. Step 4: Simplify right side
    42,017.36x = 989,026,912.96
  5. Step 5: Solve for x
    x = 989,026,912.96/42,017.36
  6. Step 6: Final answer
    x = 23,538.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.