Home / 20,307.08-28,024.38-11,232.56

Finding the Fourth Proportional to 20,307.08, 28,024.38 and 11,232.56

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Solution

The fourth proportional to 20,307.08, 28,024.38 and 11,232.56 is: 15,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.08 : 28,024.38 = 11,232.56 : x
  2. Step 2: Convert to fraction form
    20,307.08/28,024.38 = 11,232.56/x
  3. Step 3: Cross multiply
    20,307.08x = 28,024.38 × 11,232.56
  4. Step 4: Simplify right side
    20,307.08x = 314,785,529.81
  5. Step 5: Solve for x
    x = 314,785,529.81/20,307.08
  6. Step 6: Final answer
    x = 15,501.27

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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.