Home / 25,810.65-38,803.46-20,612.07

Finding the Fourth Proportional to 25,810.65, 38,803.46 and 20,612.07

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Solution

The fourth proportional to 25,810.65, 38,803.46 and 20,612.07 is: 30,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,810.65 : 38,803.46 = 20,612.07 : x
  2. Step 2: Convert to fraction form
    25,810.65/38,803.46 = 20,612.07/x
  3. Step 3: Cross multiply
    25,810.65x = 38,803.46 × 20,612.07
  4. Step 4: Simplify right side
    25,810.65x = 799,819,530.70
  5. Step 5: Solve for x
    x = 799,819,530.70/25,810.65
  6. Step 6: Final answer
    x = 30,987.97

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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.