Home / 47,258.64-70,900.10-13,977.36

Finding the Fourth Proportional to 47,258.64, 70,900.10 and 13,977.36

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Solution

The fourth proportional to 47,258.64, 70,900.10 and 13,977.36 is: 20,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,258.64 : 70,900.10 = 13,977.36 : x
  2. Step 2: Convert to fraction form
    47,258.64/70,900.10 = 13,977.36/x
  3. Step 3: Cross multiply
    47,258.64x = 70,900.10 × 13,977.36
  4. Step 4: Simplify right side
    47,258.64x = 990,996,221.74
  5. Step 5: Solve for x
    x = 990,996,221.74/47,258.64
  6. Step 6: Final answer
    x = 20,969.63

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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.