Home / 28,593.36-39,458.16-16,020.72

Finding the Fourth Proportional to 28,593.36, 39,458.16 and 16,020.72

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Solution

The fourth proportional to 28,593.36, 39,458.16 and 16,020.72 is: 22,108.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.36 : 39,458.16 = 16,020.72 : x
  2. Step 2: Convert to fraction form
    28,593.36/39,458.16 = 16,020.72/x
  3. Step 3: Cross multiply
    28,593.36x = 39,458.16 × 16,020.72
  4. Step 4: Simplify right side
    28,593.36x = 632,148,133.08
  5. Step 5: Solve for x
    x = 632,148,133.08/28,593.36
  6. Step 6: Final answer
    x = 22,108.21

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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.