Home / 28,053.48-38,711.07-15,477.42

Finding the Fourth Proportional to 28,053.48, 38,711.07 and 15,477.42

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Solution

The fourth proportional to 28,053.48, 38,711.07 and 15,477.42 is: 21,357.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.48 : 38,711.07 = 15,477.42 : x
  2. Step 2: Convert to fraction form
    28,053.48/38,711.07 = 15,477.42/x
  3. Step 3: Cross multiply
    28,053.48x = 38,711.07 × 15,477.42
  4. Step 4: Simplify right side
    28,053.48x = 599,147,489.04
  5. Step 5: Solve for x
    x = 599,147,489.04/28,053.48
  6. Step 6: Final answer
    x = 21,357.33

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Half scale
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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.