Home / 28,952.86-39,900.34-23,203.78

Finding the Fourth Proportional to 28,952.86, 39,900.34 and 23,203.78

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Solution

The fourth proportional to 28,952.86, 39,900.34 and 23,203.78 is: 31,977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,952.86 : 39,900.34 = 23,203.78 : x
  2. Step 2: Convert to fraction form
    28,952.86/39,900.34 = 23,203.78/x
  3. Step 3: Cross multiply
    28,952.86x = 39,900.34 × 23,203.78
  4. Step 4: Simplify right side
    28,952.86x = 925,838,711.29
  5. Step 5: Solve for x
    x = 925,838,711.29/28,952.86
  6. Step 6: Final answer
    x = 31,977.45

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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.