Home / 21,980.99-30,332.33-14,022.36

Finding the Fourth Proportional to 21,980.99, 30,332.33 and 14,022.36

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Solution

The fourth proportional to 21,980.99, 30,332.33 and 14,022.36 is: 19,349.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,980.99 : 30,332.33 = 14,022.36 : x
  2. Step 2: Convert to fraction form
    21,980.99/30,332.33 = 14,022.36/x
  3. Step 3: Cross multiply
    21,980.99x = 30,332.33 × 14,022.36
  4. Step 4: Simplify right side
    21,980.99x = 425,330,850.90
  5. Step 5: Solve for x
    x = 425,330,850.90/21,980.99
  6. Step 6: Final answer
    x = 19,349.94

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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.