Home / 28,206.50-38,925.24-15,631.52

Finding the Fourth Proportional to 28,206.50, 38,925.24 and 15,631.52

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Solution

The fourth proportional to 28,206.50, 38,925.24 and 15,631.52 is: 21,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.50 : 38,925.24 = 15,631.52 : x
  2. Step 2: Convert to fraction form
    28,206.50/38,925.24 = 15,631.52/x
  3. Step 3: Cross multiply
    28,206.50x = 38,925.24 × 15,631.52
  4. Step 4: Simplify right side
    28,206.50x = 608,460,667.56
  5. Step 5: Solve for x
    x = 608,460,667.56/28,206.50
  6. Step 6: Final answer
    x = 21,571.65

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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.