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Finding the Fourth Proportional to 46,384.73, 69,520.09 and 21,390.09

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Solution

The fourth proportional to 46,384.73, 69,520.09 and 21,390.09 is: 32,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,384.73 : 69,520.09 = 21,390.09 : x
  2. Step 2: Convert to fraction form
    46,384.73/69,520.09 = 21,390.09/x
  3. Step 3: Cross multiply
    46,384.73x = 69,520.09 × 21,390.09
  4. Step 4: Simplify right side
    46,384.73x = 1,487,040,981.91
  5. Step 5: Solve for x
    x = 1,487,040,981.91/46,384.73
  6. Step 6: Final answer
    x = 32,058.85

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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.