Home / 39,216.01-58,831.31-12,921.79

Finding the Fourth Proportional to 39,216.01, 58,831.31 and 12,921.79

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Solution

The fourth proportional to 39,216.01, 58,831.31 and 12,921.79 is: 19,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.01 : 58,831.31 = 12,921.79 : x
  2. Step 2: Convert to fraction form
    39,216.01/58,831.31 = 12,921.79/x
  3. Step 3: Cross multiply
    39,216.01x = 58,831.31 × 12,921.79
  4. Step 4: Simplify right side
    39,216.01x = 760,205,768.64
  5. Step 5: Solve for x
    x = 760,205,768.64/39,216.01
  6. Step 6: Final answer
    x = 19,385.09

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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.