Home / 39,160.06-54,040.93-21,255.07

Finding the Fourth Proportional to 39,160.06, 54,040.93 and 21,255.07

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Solution

The fourth proportional to 39,160.06, 54,040.93 and 21,255.07 is: 29,332.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.06 : 54,040.93 = 21,255.07 : x
  2. Step 2: Convert to fraction form
    39,160.06/54,040.93 = 21,255.07/x
  3. Step 3: Cross multiply
    39,160.06x = 54,040.93 × 21,255.07
  4. Step 4: Simplify right side
    39,160.06x = 1,148,643,479.81
  5. Step 5: Solve for x
    x = 1,148,643,479.81/39,160.06
  6. Step 6: Final answer
    x = 29,332.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.