Home / 28,224.22-38,947.80-15,474.94

Finding the Fourth Proportional to 28,224.22, 38,947.80 and 15,474.94

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Solution

The fourth proportional to 28,224.22, 38,947.80 and 15,474.94 is: 21,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.22 : 38,947.80 = 15,474.94 : x
  2. Step 2: Convert to fraction form
    28,224.22/38,947.80 = 15,474.94/x
  3. Step 3: Cross multiply
    28,224.22x = 38,947.80 × 15,474.94
  4. Step 4: Simplify right side
    28,224.22x = 602,714,868.13
  5. Step 5: Solve for x
    x = 602,714,868.13/28,224.22
  6. Step 6: Final answer
    x = 21,354.53

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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.