Home / 23,230.21-34,669.76-20,988.20

Finding the Fourth Proportional to 23,230.21, 34,669.76 and 20,988.20

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Solution

The fourth proportional to 23,230.21, 34,669.76 and 20,988.20 is: 31,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,230.21 : 34,669.76 = 20,988.20 : x
  2. Step 2: Convert to fraction form
    23,230.21/34,669.76 = 20,988.20/x
  3. Step 3: Cross multiply
    23,230.21x = 34,669.76 × 20,988.20
  4. Step 4: Simplify right side
    23,230.21x = 727,655,856.83
  5. Step 5: Solve for x
    x = 727,655,856.83/23,230.21
  6. Step 6: Final answer
    x = 31,323.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.