Home / 38,436.66-53,045.01-21,670.74

Finding the Fourth Proportional to 38,436.66, 53,045.01 and 21,670.74

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Solution

The fourth proportional to 38,436.66, 53,045.01 and 21,670.74 is: 29,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,436.66 : 53,045.01 = 21,670.74 : x
  2. Step 2: Convert to fraction form
    38,436.66/53,045.01 = 21,670.74/x
  3. Step 3: Cross multiply
    38,436.66x = 53,045.01 × 21,670.74
  4. Step 4: Simplify right side
    38,436.66x = 1,149,524,620.01
  5. Step 5: Solve for x
    x = 1,149,524,620.01/38,436.66
  6. Step 6: Final answer
    x = 29,906.99

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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.