Home / 38,651.51-57,957.68-13,688.05

Finding the Fourth Proportional to 38,651.51, 57,957.68 and 13,688.05

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Solution

The fourth proportional to 38,651.51, 57,957.68 and 13,688.05 is: 20,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,651.51 : 57,957.68 = 13,688.05 : x
  2. Step 2: Convert to fraction form
    38,651.51/57,957.68 = 13,688.05/x
  3. Step 3: Cross multiply
    38,651.51x = 57,957.68 × 13,688.05
  4. Step 4: Simplify right side
    38,651.51x = 793,327,459.72
  5. Step 5: Solve for x
    x = 793,327,459.72/38,651.51
  6. Step 6: Final answer
    x = 20,525.13

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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.