Home / 21,719.52-32,533.92-13,888.56

Finding the Fourth Proportional to 21,719.52, 32,533.92 and 13,888.56

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Solution

The fourth proportional to 21,719.52, 32,533.92 and 13,888.56 is: 20,803.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.52 : 32,533.92 = 13,888.56 : x
  2. Step 2: Convert to fraction form
    21,719.52/32,533.92 = 13,888.56/x
  3. Step 3: Cross multiply
    21,719.52x = 32,533.92 × 13,888.56
  4. Step 4: Simplify right side
    21,719.52x = 451,849,299.96
  5. Step 5: Solve for x
    x = 451,849,299.96/21,719.52
  6. Step 6: Final answer
    x = 20,803.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.