Home / 15,583.20-23,255.53-13,921.08

Finding the Fourth Proportional to 15,583.20, 23,255.53 and 13,921.08

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Solution

The fourth proportional to 15,583.20, 23,255.53 and 13,921.08 is: 20,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.20 : 23,255.53 = 13,921.08 : x
  2. Step 2: Convert to fraction form
    15,583.20/23,255.53 = 13,921.08/x
  3. Step 3: Cross multiply
    15,583.20x = 23,255.53 × 13,921.08
  4. Step 4: Simplify right side
    15,583.20x = 323,742,093.57
  5. Step 5: Solve for x
    x = 323,742,093.57/15,583.20
  6. Step 6: Final answer
    x = 20,775.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.