Home / 28,578.08-39,434.01-16,479.01

Finding the Fourth Proportional to 28,578.08, 39,434.01 and 16,479.01

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Solution

The fourth proportional to 28,578.08, 39,434.01 and 16,479.01 is: 22,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.08 : 39,434.01 = 16,479.01 : x
  2. Step 2: Convert to fraction form
    28,578.08/39,434.01 = 16,479.01/x
  3. Step 3: Cross multiply
    28,578.08x = 39,434.01 × 16,479.01
  4. Step 4: Simplify right side
    28,578.08x = 649,833,405.31
  5. Step 5: Solve for x
    x = 649,833,405.31/28,578.08
  6. Step 6: Final answer
    x = 22,738.88

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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.