Home / 30,078.36-45,097.03-15,258.70

Finding the Fourth Proportional to 30,078.36, 45,097.03 and 15,258.70

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Solution

The fourth proportional to 30,078.36, 45,097.03 and 15,258.70 is: 22,877.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,078.36 : 45,097.03 = 15,258.70 : x
  2. Step 2: Convert to fraction form
    30,078.36/45,097.03 = 15,258.70/x
  3. Step 3: Cross multiply
    30,078.36x = 45,097.03 × 15,258.70
  4. Step 4: Simplify right side
    30,078.36x = 688,122,051.66
  5. Step 5: Solve for x
    x = 688,122,051.66/30,078.36
  6. Step 6: Final answer
    x = 22,877.65

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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.