Home / 28,312.19-42,469.25-7,535.71

Finding the Fourth Proportional to 28,312.19, 42,469.25 and 7,535.71

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Solution

The fourth proportional to 28,312.19, 42,469.25 and 7,535.71 is: 11,303.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.19 : 42,469.25 = 7,535.71 : x
  2. Step 2: Convert to fraction form
    28,312.19/42,469.25 = 7,535.71/x
  3. Step 3: Cross multiply
    28,312.19x = 42,469.25 × 7,535.71
  4. Step 4: Simplify right side
    28,312.19x = 320,035,951.92
  5. Step 5: Solve for x
    x = 320,035,951.92/28,312.19
  6. Step 6: Final answer
    x = 11,303.82

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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.