Home / 47,266.64-70,912.10-13,985.36

Finding the Fourth Proportional to 47,266.64, 70,912.10 and 13,985.36

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Solution

The fourth proportional to 47,266.64, 70,912.10 and 13,985.36 is: 20,981.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,266.64 : 70,912.10 = 13,985.36 : x
  2. Step 2: Convert to fraction form
    47,266.64/70,912.10 = 13,985.36/x
  3. Step 3: Cross multiply
    47,266.64x = 70,912.10 × 13,985.36
  4. Step 4: Simplify right side
    47,266.64x = 991,731,246.86
  5. Step 5: Solve for x
    x = 991,731,246.86/47,266.64
  6. Step 6: Final answer
    x = 20,981.63

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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.