Home / 43,004.28-64,513.71-13,421.46

Finding the Fourth Proportional to 43,004.28, 64,513.71 and 13,421.46

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Solution

The fourth proportional to 43,004.28, 64,513.71 and 13,421.46 is: 20,134.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,004.28 : 64,513.71 = 13,421.46 : x
  2. Step 2: Convert to fraction form
    43,004.28/64,513.71 = 13,421.46/x
  3. Step 3: Cross multiply
    43,004.28x = 64,513.71 × 13,421.46
  4. Step 4: Simplify right side
    43,004.28x = 865,868,178.22
  5. Step 5: Solve for x
    x = 865,868,178.22/43,004.28
  6. Step 6: Final answer
    x = 20,134.47

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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.