Home / 39,341.45-54,291.82-21,436.45

Finding the Fourth Proportional to 39,341.45, 54,291.82 and 21,436.45

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Solution

The fourth proportional to 39,341.45, 54,291.82 and 21,436.45 is: 29,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341.45 : 54,291.82 = 21,436.45 : x
  2. Step 2: Convert to fraction form
    39,341.45/54,291.82 = 21,436.45/x
  3. Step 3: Cross multiply
    39,341.45x = 54,291.82 × 21,436.45
  4. Step 4: Simplify right side
    39,341.45x = 1,163,823,884.84
  5. Step 5: Solve for x
    x = 1,163,823,884.84/39,341.45
  6. Step 6: Final answer
    x = 29,582.64

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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.