Home / 28,078.86-38,750.41-15,333.23

Finding the Fourth Proportional to 28,078.86, 38,750.41 and 15,333.23

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Solution

The fourth proportional to 28,078.86, 38,750.41 and 15,333.23 is: 21,160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.86 : 38,750.41 = 15,333.23 : x
  2. Step 2: Convert to fraction form
    28,078.86/38,750.41 = 15,333.23/x
  3. Step 3: Cross multiply
    28,078.86x = 38,750.41 × 15,333.23
  4. Step 4: Simplify right side
    28,078.86x = 594,169,065.17
  5. Step 5: Solve for x
    x = 594,169,065.17/28,078.86
  6. Step 6: Final answer
    x = 21,160.72

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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.