Home / 28,544.42-39,407.12-17,216.78

Finding the Fourth Proportional to 28,544.42, 39,407.12 and 17,216.78

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Solution

The fourth proportional to 28,544.42, 39,407.12 and 17,216.78 is: 23,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.42 : 39,407.12 = 17,216.78 : x
  2. Step 2: Convert to fraction form
    28,544.42/39,407.12 = 17,216.78/x
  3. Step 3: Cross multiply
    28,544.42x = 39,407.12 × 17,216.78
  4. Step 4: Simplify right side
    28,544.42x = 678,463,715.47
  5. Step 5: Solve for x
    x = 678,463,715.47/28,544.42
  6. Step 6: Final answer
    x = 23,768.70

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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.