Home / 39,240.60-54,150.54-21,335.00

Finding the Fourth Proportional to 39,240.60, 54,150.54 and 21,335.00

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Solution

The fourth proportional to 39,240.60, 54,150.54 and 21,335.00 is: 29,441.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,240.60 : 54,150.54 = 21,335.00 : x
  2. Step 2: Convert to fraction form
    39,240.60/54,150.54 = 21,335.00/x
  3. Step 3: Cross multiply
    39,240.60x = 54,150.54 × 21,335.00
  4. Step 4: Simplify right side
    39,240.60x = 1,155,301,500.15
  5. Step 5: Solve for x
    x = 1,155,301,500.15/39,240.60
  6. Step 6: Final answer
    x = 29,441.48

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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.