Home / 37,831.20-52,206.64-20,835.12

Finding the Fourth Proportional to 37,831.20, 52,206.64 and 20,835.12

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Solution

The fourth proportional to 37,831.20, 52,206.64 and 20,835.12 is: 28,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,831.20 : 52,206.64 = 20,835.12 : x
  2. Step 2: Convert to fraction form
    37,831.20/52,206.64 = 20,835.12/x
  3. Step 3: Cross multiply
    37,831.20x = 52,206.64 × 20,835.12
  4. Step 4: Simplify right side
    37,831.20x = 1,087,731,609.20
  5. Step 5: Solve for x
    x = 1,087,731,609.20/37,831.20
  6. Step 6: Final answer
    x = 28,752.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.