Home / 27,783.18-38,340.81-15,207.93

Finding the Fourth Proportional to 27,783.18, 38,340.81 and 15,207.93

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Solution

The fourth proportional to 27,783.18, 38,340.81 and 15,207.93 is: 20,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.18 : 38,340.81 = 15,207.93 : x
  2. Step 2: Convert to fraction form
    27,783.18/38,340.81 = 15,207.93/x
  3. Step 3: Cross multiply
    27,783.18x = 38,340.81 × 15,207.93
  4. Step 4: Simplify right side
    27,783.18x = 583,084,354.62
  5. Step 5: Solve for x
    x = 583,084,354.62/27,783.18
  6. Step 6: Final answer
    x = 20,986.96

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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.