Home / 43,316.79-64,983.39-13,742.07

Finding the Fourth Proportional to 43,316.79, 64,983.39 and 13,742.07

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Solution

The fourth proportional to 43,316.79, 64,983.39 and 13,742.07 is: 20,615.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,316.79 : 64,983.39 = 13,742.07 : x
  2. Step 2: Convert to fraction form
    43,316.79/64,983.39 = 13,742.07/x
  3. Step 3: Cross multiply
    43,316.79x = 64,983.39 × 13,742.07
  4. Step 4: Simplify right side
    43,316.79x = 893,006,294.22
  5. Step 5: Solve for x
    x = 893,006,294.22/43,316.79
  6. Step 6: Final answer
    x = 20,615.71

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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.