Home / 28,475.08-39,292.24-15,727.51

Finding the Fourth Proportional to 28,475.08, 39,292.24 and 15,727.51

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Solution

The fourth proportional to 28,475.08, 39,292.24 and 15,727.51 is: 21,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475.08 : 39,292.24 = 15,727.51 : x
  2. Step 2: Convert to fraction form
    28,475.08/39,292.24 = 15,727.51/x
  3. Step 3: Cross multiply
    28,475.08x = 39,292.24 × 15,727.51
  4. Step 4: Simplify right side
    28,475.08x = 617,969,097.52
  5. Step 5: Solve for x
    x = 617,969,097.52/28,475.08
  6. Step 6: Final answer
    x = 21,702.10

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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.