Home / 43,240.09-64,885.14-18,278.52

Finding the Fourth Proportional to 43,240.09, 64,885.14 and 18,278.52

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Solution

The fourth proportional to 43,240.09, 64,885.14 and 18,278.52 is: 27,428.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,240.09 : 64,885.14 = 18,278.52 : x
  2. Step 2: Convert to fraction form
    43,240.09/64,885.14 = 18,278.52/x
  3. Step 3: Cross multiply
    43,240.09x = 64,885.14 × 18,278.52
  4. Step 4: Simplify right side
    43,240.09x = 1,186,004,329.19
  5. Step 5: Solve for x
    x = 1,186,004,329.19/43,240.09
  6. Step 6: Final answer
    x = 27,428.35

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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.