Home / 39,624.30-54,681.98-21,718.94

Finding the Fourth Proportional to 39,624.30, 54,681.98 and 21,718.94

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Solution

The fourth proportional to 39,624.30, 54,681.98 and 21,718.94 is: 29,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.30 : 54,681.98 = 21,718.94 : x
  2. Step 2: Convert to fraction form
    39,624.30/54,681.98 = 21,718.94/x
  3. Step 3: Cross multiply
    39,624.30x = 54,681.98 × 21,718.94
  4. Step 4: Simplify right side
    39,624.30x = 1,187,634,260.70
  5. Step 5: Solve for x
    x = 1,187,634,260.70/39,624.30
  6. Step 6: Final answer
    x = 29,972.37

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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.