Home / 47,909.75-71,880.63-21,252.07

Finding the Fourth Proportional to 47,909.75, 71,880.63 and 21,252.07

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Solution

The fourth proportional to 47,909.75, 71,880.63 and 21,252.07 is: 31,885.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,909.75 : 71,880.63 = 21,252.07 : x
  2. Step 2: Convert to fraction form
    47,909.75/71,880.63 = 21,252.07/x
  3. Step 3: Cross multiply
    47,909.75x = 71,880.63 × 21,252.07
  4. Step 4: Simplify right side
    47,909.75x = 1,527,611,807.77
  5. Step 5: Solve for x
    x = 1,527,611,807.77/47,909.75
  6. Step 6: Final answer
    x = 31,885.19

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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.