Home / 21,802.62-30,088.16-12,243.26

Finding the Fourth Proportional to 21,802.62, 30,088.16 and 12,243.26

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Solution

The fourth proportional to 21,802.62, 30,088.16 and 12,243.26 is: 16,896.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.62 : 30,088.16 = 12,243.26 : x
  2. Step 2: Convert to fraction form
    21,802.62/30,088.16 = 12,243.26/x
  3. Step 3: Cross multiply
    21,802.62x = 30,088.16 × 12,243.26
  4. Step 4: Simplify right side
    21,802.62x = 368,377,165.80
  5. Step 5: Solve for x
    x = 368,377,165.80/21,802.62
  6. Step 6: Final answer
    x = 16,896.00

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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.