Home / 28,089.36-38,763.52-15,514.11

Finding the Fourth Proportional to 28,089.36, 38,763.52 and 15,514.11

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Solution

The fourth proportional to 28,089.36, 38,763.52 and 15,514.11 is: 21,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.36 : 38,763.52 = 15,514.11 : x
  2. Step 2: Convert to fraction form
    28,089.36/38,763.52 = 15,514.11/x
  3. Step 3: Cross multiply
    28,089.36x = 38,763.52 × 15,514.11
  4. Step 4: Simplify right side
    28,089.36x = 601,381,474.48
  5. Step 5: Solve for x
    x = 601,381,474.48/28,089.36
  6. Step 6: Final answer
    x = 21,409.58

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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.