Home / 28,812.40-39,760.38-16,065.52

Finding the Fourth Proportional to 28,812.40, 39,760.38 and 16,065.52

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Solution

The fourth proportional to 28,812.40, 39,760.38 and 16,065.52 is: 22,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.40 : 39,760.38 = 16,065.52 : x
  2. Step 2: Convert to fraction form
    28,812.40/39,760.38 = 16,065.52/x
  3. Step 3: Cross multiply
    28,812.40x = 39,760.38 × 16,065.52
  4. Step 4: Simplify right side
    28,812.40x = 638,771,180.10
  5. Step 5: Solve for x
    x = 638,771,180.10/28,812.40
  6. Step 6: Final answer
    x = 22,170.01

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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.