Home / 27,784.24-38,342.82-15,209.08

Finding the Fourth Proportional to 27,784.24, 38,342.82 and 15,209.08

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Solution

The fourth proportional to 27,784.24, 38,342.82 and 15,209.08 is: 20,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.24 : 38,342.82 = 15,209.08 : x
  2. Step 2: Convert to fraction form
    27,784.24/38,342.82 = 15,209.08/x
  3. Step 3: Cross multiply
    27,784.24x = 38,342.82 × 15,209.08
  4. Step 4: Simplify right side
    27,784.24x = 583,159,016.81
  5. Step 5: Solve for x
    x = 583,159,016.81/27,784.24
  6. Step 6: Final answer
    x = 20,988.84

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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.