Home / 20,848.57-28,775.49-13,293.16

Finding the Fourth Proportional to 20,848.57, 28,775.49 and 13,293.16

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Solution

The fourth proportional to 20,848.57, 28,775.49 and 13,293.16 is: 18,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.57 : 28,775.49 = 13,293.16 : x
  2. Step 2: Convert to fraction form
    20,848.57/28,775.49 = 13,293.16/x
  3. Step 3: Cross multiply
    20,848.57x = 28,775.49 × 13,293.16
  4. Step 4: Simplify right side
    20,848.57x = 382,517,192.65
  5. Step 5: Solve for x
    x = 382,517,192.65/20,848.57
  6. Step 6: Final answer
    x = 18,347.41

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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.