Home / 39,069.18-53,914.98-21,163.74

Finding the Fourth Proportional to 39,069.18, 53,914.98 and 21,163.74

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Solution

The fourth proportional to 39,069.18, 53,914.98 and 21,163.74 is: 29,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.18 : 53,914.98 = 21,163.74 : x
  2. Step 2: Convert to fraction form
    39,069.18/53,914.98 = 21,163.74/x
  3. Step 3: Cross multiply
    39,069.18x = 53,914.98 × 21,163.74
  4. Step 4: Simplify right side
    39,069.18x = 1,141,042,618.83
  5. Step 5: Solve for x
    x = 1,141,042,618.83/39,069.18
  6. Step 6: Final answer
    x = 29,205.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.