Home / 47,258.78-70,902.03-13,979.72

Finding the Fourth Proportional to 47,258.78, 70,902.03 and 13,979.72

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Solution

The fourth proportional to 47,258.78, 70,902.03 and 13,979.72 is: 20,973.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,258.78 : 70,902.03 = 13,979.72 : x
  2. Step 2: Convert to fraction form
    47,258.78/70,902.03 = 13,979.72/x
  3. Step 3: Cross multiply
    47,258.78x = 70,902.03 × 13,979.72
  4. Step 4: Simplify right side
    47,258.78x = 991,190,526.83
  5. Step 5: Solve for x
    x = 991,190,526.83/47,258.78
  6. Step 6: Final answer
    x = 20,973.68

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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.