Home / 15,220.83-20,924.08-13,088.55

Finding the Fourth Proportional to 15,220.83, 20,924.08 and 13,088.55

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Solution

The fourth proportional to 15,220.83, 20,924.08 and 13,088.55 is: 17,992.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220.83 : 20,924.08 = 13,088.55 : x
  2. Step 2: Convert to fraction form
    15,220.83/20,924.08 = 13,088.55/x
  3. Step 3: Cross multiply
    15,220.83x = 20,924.08 × 13,088.55
  4. Step 4: Simplify right side
    15,220.83x = 273,865,867.28
  5. Step 5: Solve for x
    x = 273,865,867.28/15,220.83
  6. Step 6: Final answer
    x = 17,992.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.