Home / 20,559.04-28,371.54-11,127.64

Finding the Fourth Proportional to 20,559.04, 28,371.54 and 11,127.64

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Solution

The fourth proportional to 20,559.04, 28,371.54 and 11,127.64 is: 15,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.04 : 28,371.54 = 11,127.64 : x
  2. Step 2: Convert to fraction form
    20,559.04/28,371.54 = 11,127.64/x
  3. Step 3: Cross multiply
    20,559.04x = 28,371.54 × 11,127.64
  4. Step 4: Simplify right side
    20,559.04x = 315,708,283.37
  5. Step 5: Solve for x
    x = 315,708,283.37/20,559.04
  6. Step 6: Final answer
    x = 15,356.18

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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.