Home / 39,130.48-58,693.68-12,831.76

Finding the Fourth Proportional to 39,130.48, 58,693.68 and 12,831.76

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Solution

The fourth proportional to 39,130.48, 58,693.68 and 12,831.76 is: 19,246.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,130.48 : 58,693.68 = 12,831.76 : x
  2. Step 2: Convert to fraction form
    39,130.48/58,693.68 = 12,831.76/x
  3. Step 3: Cross multiply
    39,130.48x = 58,693.68 × 12,831.76
  4. Step 4: Simplify right side
    39,130.48x = 753,143,215.28
  5. Step 5: Solve for x
    x = 753,143,215.28/39,130.48
  6. Step 6: Final answer
    x = 19,246.97

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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.