Home / 47,268.36-70,902.54-13,988.76

Finding the Fourth Proportional to 47,268.36, 70,902.54 and 13,988.76

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Solution

The fourth proportional to 47,268.36, 70,902.54 and 13,988.76 is: 20,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,268.36 : 70,902.54 = 13,988.76 : x
  2. Step 2: Convert to fraction form
    47,268.36/70,902.54 = 13,988.76/x
  3. Step 3: Cross multiply
    47,268.36x = 70,902.54 × 13,988.76
  4. Step 4: Simplify right side
    47,268.36x = 991,838,615.45
  5. Step 5: Solve for x
    x = 991,838,615.45/47,268.36
  6. Step 6: Final answer
    x = 20,983.14

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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.