Home / 47,275.79-70,892.89-13,998.42

Finding the Fourth Proportional to 47,275.79, 70,892.89 and 13,998.42

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Solution

The fourth proportional to 47,275.79, 70,892.89 and 13,998.42 is: 20,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,275.79 : 70,892.89 = 13,998.42 : x
  2. Step 2: Convert to fraction form
    47,275.79/70,892.89 = 13,998.42/x
  3. Step 3: Cross multiply
    47,275.79x = 70,892.89 × 13,998.42
  4. Step 4: Simplify right side
    47,275.79x = 992,388,414.24
  5. Step 5: Solve for x
    x = 992,388,414.24/47,275.79
  6. Step 6: Final answer
    x = 20,991.47

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1.5x scale

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.