Home / 25,217.20-37,831.47-7,688.80

Finding the Fourth Proportional to 25,217.20, 37,831.47 and 7,688.80

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Solution

The fourth proportional to 25,217.20, 37,831.47 and 7,688.80 is: 11,534.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,217.20 : 37,831.47 = 7,688.80 : x
  2. Step 2: Convert to fraction form
    25,217.20/37,831.47 = 7,688.80/x
  3. Step 3: Cross multiply
    25,217.20x = 37,831.47 × 7,688.80
  4. Step 4: Simplify right side
    25,217.20x = 290,878,378.93
  5. Step 5: Solve for x
    x = 290,878,378.93/25,217.20
  6. Step 6: Final answer
    x = 11,534.92

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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.