Home / 25,680.27-38,457.46-21,210.58

Finding the Fourth Proportional to 25,680.27, 38,457.46 and 21,210.58

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Solution

The fourth proportional to 25,680.27, 38,457.46 and 21,210.58 is: 31,763.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680.27 : 38,457.46 = 21,210.58 : x
  2. Step 2: Convert to fraction form
    25,680.27/38,457.46 = 21,210.58/x
  3. Step 3: Cross multiply
    25,680.27x = 38,457.46 × 21,210.58
  4. Step 4: Simplify right side
    25,680.27x = 815,705,031.93
  5. Step 5: Solve for x
    x = 815,705,031.93/25,680.27
  6. Step 6: Final answer
    x = 31,763.88

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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.