Home / 28,544.44-39,390.69-15,623.65

Finding the Fourth Proportional to 28,544.44, 39,390.69 and 15,623.65

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Solution

The fourth proportional to 28,544.44, 39,390.69 and 15,623.65 is: 21,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.44 : 39,390.69 = 15,623.65 : x
  2. Step 2: Convert to fraction form
    28,544.44/39,390.69 = 15,623.65/x
  3. Step 3: Cross multiply
    28,544.44x = 39,390.69 × 15,623.65
  4. Step 4: Simplify right side
    28,544.44x = 615,426,156.87
  5. Step 5: Solve for x
    x = 615,426,156.87/28,544.44
  6. Step 6: Final answer
    x = 21,560.29

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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.