Home / 21,073.86-31,610.79-6,293.16

Finding the Fourth Proportional to 21,073.86, 31,610.79 and 6,293.16

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Solution

The fourth proportional to 21,073.86, 31,610.79 and 6,293.16 is: 9,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.86 : 31,610.79 = 6,293.16 : x
  2. Step 2: Convert to fraction form
    21,073.86/31,610.79 = 6,293.16/x
  3. Step 3: Cross multiply
    21,073.86x = 31,610.79 × 6,293.16
  4. Step 4: Simplify right side
    21,073.86x = 198,931,759.20
  5. Step 5: Solve for x
    x = 198,931,759.20/21,073.86
  6. Step 6: Final answer
    x = 9,439.74

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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.