Home / 42,991.29-64,483.11-14,910.75

Finding the Fourth Proportional to 42,991.29, 64,483.11 and 14,910.75

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Solution

The fourth proportional to 42,991.29, 64,483.11 and 14,910.75 is: 22,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,991.29 : 64,483.11 = 14,910.75 : x
  2. Step 2: Convert to fraction form
    42,991.29/64,483.11 = 14,910.75/x
  3. Step 3: Cross multiply
    42,991.29x = 64,483.11 × 14,910.75
  4. Step 4: Simplify right side
    42,991.29x = 961,491,532.43
  5. Step 5: Solve for x
    x = 961,491,532.43/42,991.29
  6. Step 6: Final answer
    x = 22,364.80

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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.