Home / 28,967.68-39,974.64-16,392.16

Finding the Fourth Proportional to 28,967.68, 39,974.64 and 16,392.16

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Solution

The fourth proportional to 28,967.68, 39,974.64 and 16,392.16 is: 22,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.68 : 39,974.64 = 16,392.16 : x
  2. Step 2: Convert to fraction form
    28,967.68/39,974.64 = 16,392.16/x
  3. Step 3: Cross multiply
    28,967.68x = 39,974.64 × 16,392.16
  4. Step 4: Simplify right side
    28,967.68x = 655,270,694.82
  5. Step 5: Solve for x
    x = 655,270,694.82/28,967.68
  6. Step 6: Final answer
    x = 22,620.75

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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.