Home / 39,760.32-54,868.63-21,854.94

Finding the Fourth Proportional to 39,760.32, 54,868.63 and 21,854.94

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Solution

The fourth proportional to 39,760.32, 54,868.63 and 21,854.94 is: 30,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,760.32 : 54,868.63 = 21,854.94 : x
  2. Step 2: Convert to fraction form
    39,760.32/54,868.63 = 21,854.94/x
  3. Step 3: Cross multiply
    39,760.32x = 54,868.63 × 21,854.94
  4. Step 4: Simplify right side
    39,760.32x = 1,199,150,630.48
  5. Step 5: Solve for x
    x = 1,199,150,630.48/39,760.32
  6. Step 6: Final answer
    x = 30,159.48

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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.