Home / 28,392.80-39,180.24-17,064.16

Finding the Fourth Proportional to 28,392.80, 39,180.24 and 17,064.16

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Solution

The fourth proportional to 28,392.80, 39,180.24 and 17,064.16 is: 23,547.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392.80 : 39,180.24 = 17,064.16 : x
  2. Step 2: Convert to fraction form
    28,392.80/39,180.24 = 17,064.16/x
  3. Step 3: Cross multiply
    28,392.80x = 39,180.24 × 17,064.16
  4. Step 4: Simplify right side
    28,392.80x = 668,577,884.20
  5. Step 5: Solve for x
    x = 668,577,884.20/28,392.80
  6. Step 6: Final answer
    x = 23,547.44

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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.