Home / 20,325.77-28,050.93-11,372.77

Finding the Fourth Proportional to 20,325.77, 28,050.93 and 11,372.77

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Solution

The fourth proportional to 20,325.77, 28,050.93 and 11,372.77 is: 15,695.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.77 : 28,050.93 = 11,372.77 : x
  2. Step 2: Convert to fraction form
    20,325.77/28,050.93 = 11,372.77/x
  3. Step 3: Cross multiply
    20,325.77x = 28,050.93 × 11,372.77
  4. Step 4: Simplify right side
    20,325.77x = 319,016,775.18
  5. Step 5: Solve for x
    x = 319,016,775.18/20,325.77
  6. Step 6: Final answer
    x = 15,695.19

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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.