Home / 28,004.30-38,645.81-15,257.44

Finding the Fourth Proportional to 28,004.30, 38,645.81 and 15,257.44

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Solution

The fourth proportional to 28,004.30, 38,645.81 and 15,257.44 is: 21,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.30 : 38,645.81 = 15,257.44 : x
  2. Step 2: Convert to fraction form
    28,004.30/38,645.81 = 15,257.44/x
  3. Step 3: Cross multiply
    28,004.30x = 38,645.81 × 15,257.44
  4. Step 4: Simplify right side
    28,004.30x = 589,636,051.04
  5. Step 5: Solve for x
    x = 589,636,051.04/28,004.30
  6. Step 6: Final answer
    x = 21,055.20

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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.