Home / 38,586.36-57,864.81-13,621.77

Finding the Fourth Proportional to 38,586.36, 57,864.81 and 13,621.77

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Solution

The fourth proportional to 38,586.36, 57,864.81 and 13,621.77 is: 20,427.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,586.36 : 57,864.81 = 13,621.77 : x
  2. Step 2: Convert to fraction form
    38,586.36/57,864.81 = 13,621.77/x
  3. Step 3: Cross multiply
    38,586.36x = 57,864.81 × 13,621.77
  4. Step 4: Simplify right side
    38,586.36x = 788,221,132.91
  5. Step 5: Solve for x
    x = 788,221,132.91/38,586.36
  6. Step 6: Final answer
    x = 20,427.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.