Home / 27,815.66-38,385.62-15,068.86

Finding the Fourth Proportional to 27,815.66, 38,385.62 and 15,068.86

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Solution

The fourth proportional to 27,815.66, 38,385.62 and 15,068.86 is: 20,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.66 : 38,385.62 = 15,068.86 : x
  2. Step 2: Convert to fraction form
    27,815.66/38,385.62 = 15,068.86/x
  3. Step 3: Cross multiply
    27,815.66x = 38,385.62 × 15,068.86
  4. Step 4: Simplify right side
    27,815.66x = 578,427,533.79
  5. Step 5: Solve for x
    x = 578,427,533.79/27,815.66
  6. Step 6: Final answer
    x = 20,795.03

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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.