Home / 25,793.80-38,866.43-21,216.36

Finding the Fourth Proportional to 25,793.80, 38,866.43 and 21,216.36

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Solution

The fourth proportional to 25,793.80, 38,866.43 and 21,216.36 is: 31,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,793.80 : 38,866.43 = 21,216.36 : x
  2. Step 2: Convert to fraction form
    25,793.80/38,866.43 = 21,216.36/x
  3. Step 3: Cross multiply
    25,793.80x = 38,866.43 × 21,216.36
  4. Step 4: Simplify right side
    25,793.80x = 824,604,170.79
  5. Step 5: Solve for x
    x = 824,604,170.79/25,793.80
  6. Step 6: Final answer
    x = 31,969.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.