Home / 47,831.28-71,756.64-16,688.40

Finding the Fourth Proportional to 47,831.28, 71,756.64 and 16,688.40

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Solution

The fourth proportional to 47,831.28, 71,756.64 and 16,688.40 is: 25,035.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,831.28 : 71,756.64 = 16,688.40 : x
  2. Step 2: Convert to fraction form
    47,831.28/71,756.64 = 16,688.40/x
  3. Step 3: Cross multiply
    47,831.28x = 71,756.64 × 16,688.40
  4. Step 4: Simplify right side
    47,831.28x = 1,197,503,510.98
  5. Step 5: Solve for x
    x = 1,197,503,510.98/47,831.28
  6. Step 6: Final answer
    x = 25,035.99

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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.