Home / 28,051.52-38,713.41-15,955.79

Finding the Fourth Proportional to 28,051.52, 38,713.41 and 15,955.79

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Solution

The fourth proportional to 28,051.52, 38,713.41 and 15,955.79 is: 22,020.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.52 : 38,713.41 = 15,955.79 : x
  2. Step 2: Convert to fraction form
    28,051.52/38,713.41 = 15,955.79/x
  3. Step 3: Cross multiply
    28,051.52x = 38,713.41 × 15,955.79
  4. Step 4: Simplify right side
    28,051.52x = 617,703,064.34
  5. Step 5: Solve for x
    x = 617,703,064.34/28,051.52
  6. Step 6: Final answer
    x = 22,020.31

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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.