Home / 20,164.46-30,255.12-10,802.07

Finding the Fourth Proportional to 20,164.46, 30,255.12 and 10,802.07

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Solution

The fourth proportional to 20,164.46, 30,255.12 and 10,802.07 is: 16,207.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.46 : 30,255.12 = 10,802.07 : x
  2. Step 2: Convert to fraction form
    20,164.46/30,255.12 = 10,802.07/x
  3. Step 3: Cross multiply
    20,164.46x = 30,255.12 × 10,802.07
  4. Step 4: Simplify right side
    20,164.46x = 326,817,924.10
  5. Step 5: Solve for x
    x = 326,817,924.10/20,164.46
  6. Step 6: Final answer
    x = 16,207.62

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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.