Home / 28,223.79-42,340.54-8,500.69

Finding the Fourth Proportional to 28,223.79, 42,340.54 and 8,500.69

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Solution

The fourth proportional to 28,223.79, 42,340.54 and 8,500.69 is: 12,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.79 : 42,340.54 = 8,500.69 : x
  2. Step 2: Convert to fraction form
    28,223.79/42,340.54 = 8,500.69/x
  3. Step 3: Cross multiply
    28,223.79x = 42,340.54 × 8,500.69
  4. Step 4: Simplify right side
    28,223.79x = 359,923,804.97
  5. Step 5: Solve for x
    x = 359,923,804.97/28,223.79
  6. Step 6: Final answer
    x = 12,752.50

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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.