Home / 39,382.26-54,347.28-21,477.18

Finding the Fourth Proportional to 39,382.26, 54,347.28 and 21,477.18

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Solution

The fourth proportional to 39,382.26, 54,347.28 and 21,477.18 is: 29,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,382.26 : 54,347.28 = 21,477.18 : x
  2. Step 2: Convert to fraction form
    39,382.26/54,347.28 = 21,477.18/x
  3. Step 3: Cross multiply
    39,382.26x = 54,347.28 × 21,477.18
  4. Step 4: Simplify right side
    39,382.26x = 1,167,226,315.07
  5. Step 5: Solve for x
    x = 1,167,226,315.07/39,382.26
  6. Step 6: Final answer
    x = 29,638.38

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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.