Home / 25,483.34-38,053.40-20,812.61

Finding the Fourth Proportional to 25,483.34, 38,053.40 and 20,812.61

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Solution

The fourth proportional to 25,483.34, 38,053.40 and 20,812.61 is: 31,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,483.34 : 38,053.40 = 20,812.61 : x
  2. Step 2: Convert to fraction form
    25,483.34/38,053.40 = 20,812.61/x
  3. Step 3: Cross multiply
    25,483.34x = 38,053.40 × 20,812.61
  4. Step 4: Simplify right side
    25,483.34x = 791,990,564.44
  5. Step 5: Solve for x
    x = 791,990,564.44/25,483.34
  6. Step 6: Final answer
    x = 31,078.76

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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.