Home / 25,688.10-38,536.20-8,159.70

Finding the Fourth Proportional to 25,688.10, 38,536.20 and 8,159.70

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Solution

The fourth proportional to 25,688.10, 38,536.20 and 8,159.70 is: 12,240.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,688.10 : 38,536.20 = 8,159.70 : x
  2. Step 2: Convert to fraction form
    25,688.10/38,536.20 = 8,159.70/x
  3. Step 3: Cross multiply
    25,688.10x = 38,536.20 × 8,159.70
  4. Step 4: Simplify right side
    25,688.10x = 314,443,831.14
  5. Step 5: Solve for x
    x = 314,443,831.14/25,688.10
  6. Step 6: Final answer
    x = 12,240.84

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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.