Home / 28,287.14-42,448.59-15,815.34

Finding the Fourth Proportional to 28,287.14, 42,448.59 and 15,815.34

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Solution

The fourth proportional to 28,287.14, 42,448.59 and 15,815.34 is: 23,733.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.14 : 42,448.59 = 15,815.34 : x
  2. Step 2: Convert to fraction form
    28,287.14/42,448.59 = 15,815.34/x
  3. Step 3: Cross multiply
    28,287.14x = 42,448.59 × 15,815.34
  4. Step 4: Simplify right side
    28,287.14x = 671,338,883.37
  5. Step 5: Solve for x
    x = 671,338,883.37/28,287.14
  6. Step 6: Final answer
    x = 23,733.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.