Home / 28,053.36-38,713.74-15,306.83

Finding the Fourth Proportional to 28,053.36, 38,713.74 and 15,306.83

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Solution

The fourth proportional to 28,053.36, 38,713.74 and 15,306.83 is: 21,123.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.36 : 38,713.74 = 15,306.83 : x
  2. Step 2: Convert to fraction form
    28,053.36/38,713.74 = 15,306.83/x
  3. Step 3: Cross multiply
    28,053.36x = 38,713.74 × 15,306.83
  4. Step 4: Simplify right side
    28,053.36x = 592,584,636.84
  5. Step 5: Solve for x
    x = 592,584,636.84/28,053.36
  6. Step 6: Final answer
    x = 21,123.48

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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.