Home / 39,476.77-54,477.95-21,327.49

Finding the Fourth Proportional to 39,476.77, 54,477.95 and 21,327.49

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Solution

The fourth proportional to 39,476.77, 54,477.95 and 21,327.49 is: 29,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,476.77 : 54,477.95 = 21,327.49 : x
  2. Step 2: Convert to fraction form
    39,476.77/54,477.95 = 21,327.49/x
  3. Step 3: Cross multiply
    39,476.77x = 54,477.95 × 21,327.49
  4. Step 4: Simplify right side
    39,476.77x = 1,161,877,933.85
  5. Step 5: Solve for x
    x = 1,161,877,933.85/39,476.77
  6. Step 6: Final answer
    x = 29,431.94

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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.