Home / 27,711.64-38,242.09-15,774.96

Finding the Fourth Proportional to 27,711.64, 38,242.09 and 15,774.96

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Solution

The fourth proportional to 27,711.64, 38,242.09 and 15,774.96 is: 21,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.64 : 38,242.09 = 15,774.96 : x
  2. Step 2: Convert to fraction form
    27,711.64/38,242.09 = 15,774.96/x
  3. Step 3: Cross multiply
    27,711.64x = 38,242.09 × 15,774.96
  4. Step 4: Simplify right side
    27,711.64x = 603,267,495.64
  5. Step 5: Solve for x
    x = 603,267,495.64/27,711.64
  6. Step 6: Final answer
    x = 21,769.47

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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.