Home / 19,430.40-26,811.52-11,047.04

Finding the Fourth Proportional to 19,430.40, 26,811.52 and 11,047.04

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Solution

The fourth proportional to 19,430.40, 26,811.52 and 11,047.04 is: 15,243.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.40 : 26,811.52 = 11,047.04 : x
  2. Step 2: Convert to fraction form
    19,430.40/26,811.52 = 11,047.04/x
  3. Step 3: Cross multiply
    19,430.40x = 26,811.52 × 11,047.04
  4. Step 4: Simplify right side
    19,430.40x = 296,187,933.90
  5. Step 5: Solve for x
    x = 296,187,933.90/19,430.40
  6. Step 6: Final answer
    x = 15,243.53

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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.