Home / 28,319.14-39,108.72-23,332.78

Finding the Fourth Proportional to 28,319.14, 39,108.72 and 23,332.78

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Solution

The fourth proportional to 28,319.14, 39,108.72 and 23,332.78 is: 32,222.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.14 : 39,108.72 = 23,332.78 : x
  2. Step 2: Convert to fraction form
    28,319.14/39,108.72 = 23,332.78/x
  3. Step 3: Cross multiply
    28,319.14x = 39,108.72 × 23,332.78
  4. Step 4: Simplify right side
    28,319.14x = 912,515,159.84
  5. Step 5: Solve for x
    x = 912,515,159.84/28,319.14
  6. Step 6: Final answer
    x = 32,222.56

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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.