Home / 39,076.08-53,925-21,171.12

Finding the Fourth Proportional to 39,076.08, 53,925 and 21,171.12

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Solution

The fourth proportional to 39,076.08, 53,925 and 21,171.12 is: 29,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,076.08 : 53,925 = 21,171.12 : x
  2. Step 2: Convert to fraction form
    39,076.08/53,925 = 21,171.12/x
  3. Step 3: Cross multiply
    39,076.08x = 53,925 × 21,171.12
  4. Step 4: Simplify right side
    39,076.08x = 1,141,652,646
  5. Step 5: Solve for x
    x = 1,141,652,646/39,076.08
  6. Step 6: Final answer
    x = 29,216.15

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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.