Home / 39,460.59-54,454.93-21,555.13

Finding the Fourth Proportional to 39,460.59, 54,454.93 and 21,555.13

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Solution

The fourth proportional to 39,460.59, 54,454.93 and 21,555.13 is: 29,745.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,460.59 : 54,454.93 = 21,555.13 : x
  2. Step 2: Convert to fraction form
    39,460.59/54,454.93 = 21,555.13/x
  3. Step 3: Cross multiply
    39,460.59x = 54,454.93 × 21,555.13
  4. Step 4: Simplify right side
    39,460.59x = 1,173,783,095.29
  5. Step 5: Solve for x
    x = 1,173,783,095.29/39,460.59
  6. Step 6: Final answer
    x = 29,745.71

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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.