Home / 26,400.56-36,422.52-15,220.40

Finding the Fourth Proportional to 26,400.56, 36,422.52 and 15,220.40

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Solution

The fourth proportional to 26,400.56, 36,422.52 and 15,220.40 is: 20,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,400.56 : 36,422.52 = 15,220.40 : x
  2. Step 2: Convert to fraction form
    26,400.56/36,422.52 = 15,220.40/x
  3. Step 3: Cross multiply
    26,400.56x = 36,422.52 × 15,220.40
  4. Step 4: Simplify right side
    26,400.56x = 554,365,323.41
  5. Step 5: Solve for x
    x = 554,365,323.41/26,400.56
  6. Step 6: Final answer
    x = 20,998.24

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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.