Home / 28,281.60-39,029.67-15,535.83

Finding the Fourth Proportional to 28,281.60, 39,029.67 and 15,535.83

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Solution

The fourth proportional to 28,281.60, 39,029.67 and 15,535.83 is: 21,440.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.60 : 39,029.67 = 15,535.83 : x
  2. Step 2: Convert to fraction form
    28,281.60/39,029.67 = 15,535.83/x
  3. Step 3: Cross multiply
    28,281.60x = 39,029.67 × 15,535.83
  4. Step 4: Simplify right side
    28,281.60x = 606,358,318.08
  5. Step 5: Solve for x
    x = 606,358,318.08/28,281.60
  6. Step 6: Final answer
    x = 21,440.03

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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.