Home / 20,860.52-28,765.30-17,055.24

Finding the Fourth Proportional to 20,860.52, 28,765.30 and 17,055.24

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Solution

The fourth proportional to 20,860.52, 28,765.30 and 17,055.24 is: 23,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.52 : 28,765.30 = 17,055.24 : x
  2. Step 2: Convert to fraction form
    20,860.52/28,765.30 = 17,055.24/x
  3. Step 3: Cross multiply
    20,860.52x = 28,765.30 × 17,055.24
  4. Step 4: Simplify right side
    20,860.52x = 490,599,095.17
  5. Step 5: Solve for x
    x = 490,599,095.17/20,860.52
  6. Step 6: Final answer
    x = 23,518.07

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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.