Home / 28,025.04-38,673.78-15,449.78

Finding the Fourth Proportional to 28,025.04, 38,673.78 and 15,449.78

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Solution

The fourth proportional to 28,025.04, 38,673.78 and 15,449.78 is: 21,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.04 : 38,673.78 = 15,449.78 : x
  2. Step 2: Convert to fraction form
    28,025.04/38,673.78 = 15,449.78/x
  3. Step 3: Cross multiply
    28,025.04x = 38,673.78 × 15,449.78
  4. Step 4: Simplify right side
    28,025.04x = 597,501,392.77
  5. Step 5: Solve for x
    x = 597,501,392.77/28,025.04
  6. Step 6: Final answer
    x = 21,320.27

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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.