Home / 28,078.02-38,747.07-18,506.34

Finding the Fourth Proportional to 28,078.02, 38,747.07 and 18,506.34

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Solution

The fourth proportional to 28,078.02, 38,747.07 and 18,506.34 is: 25,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.02 : 38,747.07 = 18,506.34 : x
  2. Step 2: Convert to fraction form
    28,078.02/38,747.07 = 18,506.34/x
  3. Step 3: Cross multiply
    28,078.02x = 38,747.07 × 18,506.34
  4. Step 4: Simplify right side
    28,078.02x = 717,066,451.42
  5. Step 5: Solve for x
    x = 717,066,451.42/28,078.02
  6. Step 6: Final answer
    x = 25,538.36

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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.