Home / 15,491.03-21,344.45-14,217.17

Finding the Fourth Proportional to 15,491.03, 21,344.45 and 14,217.17

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Solution

The fourth proportional to 15,491.03, 21,344.45 and 14,217.17 is: 19,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.03 : 21,344.45 = 14,217.17 : x
  2. Step 2: Convert to fraction form
    15,491.03/21,344.45 = 14,217.17/x
  3. Step 3: Cross multiply
    15,491.03x = 21,344.45 × 14,217.17
  4. Step 4: Simplify right side
    15,491.03x = 303,457,496.40
  5. Step 5: Solve for x
    x = 303,457,496.40/15,491.03
  6. Step 6: Final answer
    x = 19,589.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.