Home / 43,901.28-65,866.70-13,920.41

Finding the Fourth Proportional to 43,901.28, 65,866.70 and 13,920.41

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Solution

The fourth proportional to 43,901.28, 65,866.70 and 13,920.41 is: 20,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,901.28 : 65,866.70 = 13,920.41 : x
  2. Step 2: Convert to fraction form
    43,901.28/65,866.70 = 13,920.41/x
  3. Step 3: Cross multiply
    43,901.28x = 65,866.70 × 13,920.41
  4. Step 4: Simplify right side
    43,901.28x = 916,891,668.81
  5. Step 5: Solve for x
    x = 916,891,668.81/43,901.28
  6. Step 6: Final answer
    x = 20,885.31

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1.5x scale

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.