Home / 38,315.10-57,349.53-20,501.31

Finding the Fourth Proportional to 38,315.10, 57,349.53 and 20,501.31

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Solution

The fourth proportional to 38,315.10, 57,349.53 and 20,501.31 is: 30,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,315.10 : 57,349.53 = 20,501.31 : x
  2. Step 2: Convert to fraction form
    38,315.10/57,349.53 = 20,501.31/x
  3. Step 3: Cross multiply
    38,315.10x = 57,349.53 × 20,501.31
  4. Step 4: Simplify right side
    38,315.10x = 1,175,740,492.88
  5. Step 5: Solve for x
    x = 1,175,740,492.88/38,315.10
  6. Step 6: Final answer
    x = 30,686.09

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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.