Home / 39,360.21-54,316.64-21,454.82

Finding the Fourth Proportional to 39,360.21, 54,316.64 and 21,454.82

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Solution

The fourth proportional to 39,360.21, 54,316.64 and 21,454.82 is: 29,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,360.21 : 54,316.64 = 21,454.82 : x
  2. Step 2: Convert to fraction form
    39,360.21/54,316.64 = 21,454.82/x
  3. Step 3: Cross multiply
    39,360.21x = 54,316.64 × 21,454.82
  4. Step 4: Simplify right side
    39,360.21x = 1,165,353,719.95
  5. Step 5: Solve for x
    x = 1,165,353,719.95/39,360.21
  6. Step 6: Final answer
    x = 29,607.41

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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.