Home / 20,573.90-28,362.24-13,488.02

Finding the Fourth Proportional to 20,573.90, 28,362.24 and 13,488.02

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Solution

The fourth proportional to 20,573.90, 28,362.24 and 13,488.02 is: 18,593.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.90 : 28,362.24 = 13,488.02 : x
  2. Step 2: Convert to fraction form
    20,573.90/28,362.24 = 13,488.02/x
  3. Step 3: Cross multiply
    20,573.90x = 28,362.24 × 13,488.02
  4. Step 4: Simplify right side
    20,573.90x = 382,550,460.36
  5. Step 5: Solve for x
    x = 382,550,460.36/20,573.90
  6. Step 6: Final answer
    x = 18,593.97

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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.