Home / 47,869.28-71,802.90-12,808.94

Finding the Fourth Proportional to 47,869.28, 71,802.90 and 12,808.94

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Solution

The fourth proportional to 47,869.28, 71,802.90 and 12,808.94 is: 19,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,869.28 : 71,802.90 = 12,808.94 : x
  2. Step 2: Convert to fraction form
    47,869.28/71,802.90 = 12,808.94/x
  3. Step 3: Cross multiply
    47,869.28x = 71,802.90 × 12,808.94
  4. Step 4: Simplify right side
    47,869.28x = 919,719,037.93
  5. Step 5: Solve for x
    x = 919,719,037.93/47,869.28
  6. Step 6: Final answer
    x = 19,213.14

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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.