Home / 39,399.23-54,369.86-21,494.23

Finding the Fourth Proportional to 39,399.23, 54,369.86 and 21,494.23

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Solution

The fourth proportional to 39,399.23, 54,369.86 and 21,494.23 is: 29,661.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,399.23 : 54,369.86 = 21,494.23 : x
  2. Step 2: Convert to fraction form
    39,399.23/54,369.86 = 21,494.23/x
  3. Step 3: Cross multiply
    39,399.23x = 54,369.86 × 21,494.23
  4. Step 4: Simplify right side
    39,399.23x = 1,168,638,397.61
  5. Step 5: Solve for x
    x = 1,168,638,397.61/39,399.23
  6. Step 6: Final answer
    x = 29,661.45

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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.