Home / 16,979.48-23,434.47-9,428.22

Finding the Fourth Proportional to 16,979.48, 23,434.47 and 9,428.22

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Solution

The fourth proportional to 16,979.48, 23,434.47 and 9,428.22 is: 13,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.48 : 23,434.47 = 9,428.22 : x
  2. Step 2: Convert to fraction form
    16,979.48/23,434.47 = 9,428.22/x
  3. Step 3: Cross multiply
    16,979.48x = 23,434.47 × 9,428.22
  4. Step 4: Simplify right side
    16,979.48x = 220,945,338.74
  5. Step 5: Solve for x
    x = 220,945,338.74/16,979.48
  6. Step 6: Final answer
    x = 13,012.50

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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.