Home / 39,623.24-54,681.45-21,718.23

Finding the Fourth Proportional to 39,623.24, 54,681.45 and 21,718.23

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Solution

The fourth proportional to 39,623.24, 54,681.45 and 21,718.23 is: 29,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,623.24 : 54,681.45 = 21,718.23 : x
  2. Step 2: Convert to fraction form
    39,623.24/54,681.45 = 21,718.23/x
  3. Step 3: Cross multiply
    39,623.24x = 54,681.45 × 21,718.23
  4. Step 4: Simplify right side
    39,623.24x = 1,187,584,021.33
  5. Step 5: Solve for x
    x = 1,187,584,021.33/39,623.24
  6. Step 6: Final answer
    x = 29,971.90

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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.