Home / 42,111.90-63,152.46-15,809.58

Finding the Fourth Proportional to 42,111.90, 63,152.46 and 15,809.58

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Solution

The fourth proportional to 42,111.90, 63,152.46 and 15,809.58 is: 23,708.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,111.90 : 63,152.46 = 15,809.58 : x
  2. Step 2: Convert to fraction form
    42,111.90/63,152.46 = 15,809.58/x
  3. Step 3: Cross multiply
    42,111.90x = 63,152.46 × 15,809.58
  4. Step 4: Simplify right side
    42,111.90x = 998,413,868.57
  5. Step 5: Solve for x
    x = 998,413,868.57/42,111.90
  6. Step 6: Final answer
    x = 23,708.59

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1.5x scale

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.