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Finding the Fourth Proportional to 47,920.65, 71,880.99 and 21,594.63

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Solution

The fourth proportional to 47,920.65, 71,880.99 and 21,594.63 is: 32,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,920.65 : 71,880.99 = 21,594.63 : x
  2. Step 2: Convert to fraction form
    47,920.65/71,880.99 = 21,594.63/x
  3. Step 3: Cross multiply
    47,920.65x = 71,880.99 × 21,594.63
  4. Step 4: Simplify right side
    47,920.65x = 1,552,243,383.08
  5. Step 5: Solve for x
    x = 1,552,243,383.08/47,920.65
  6. Step 6: Final answer
    x = 32,391.95

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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.