Home / 39,127.47-58,699.71-12,831.22

Finding the Fourth Proportional to 39,127.47, 58,699.71 and 12,831.22

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Solution

The fourth proportional to 39,127.47, 58,699.71 and 12,831.22 is: 19,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,127.47 : 58,699.71 = 12,831.22 : x
  2. Step 2: Convert to fraction form
    39,127.47/58,699.71 = 12,831.22/x
  3. Step 3: Cross multiply
    39,127.47x = 58,699.71 × 12,831.22
  4. Step 4: Simplify right side
    39,127.47x = 753,188,966.32
  5. Step 5: Solve for x
    x = 753,188,966.32/39,127.47
  6. Step 6: Final answer
    x = 19,249.62

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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.