Home / 20,713.77-28,585.04-11,282.37

Finding the Fourth Proportional to 20,713.77, 28,585.04 and 11,282.37

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Solution

The fourth proportional to 20,713.77, 28,585.04 and 11,282.37 is: 15,569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.77 : 28,585.04 = 11,282.37 : x
  2. Step 2: Convert to fraction form
    20,713.77/28,585.04 = 11,282.37/x
  3. Step 3: Cross multiply
    20,713.77x = 28,585.04 × 11,282.37
  4. Step 4: Simplify right side
    20,713.77x = 322,506,941.33
  5. Step 5: Solve for x
    x = 322,506,941.33/20,713.77
  6. Step 6: Final answer
    x = 15,569.69

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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.