Home / 21,772.40-30,044.05-14,708.39

Finding the Fourth Proportional to 21,772.40, 30,044.05 and 14,708.39

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Solution

The fourth proportional to 21,772.40, 30,044.05 and 14,708.39 is: 20,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.40 : 30,044.05 = 14,708.39 : x
  2. Step 2: Convert to fraction form
    21,772.40/30,044.05 = 14,708.39/x
  3. Step 3: Cross multiply
    21,772.40x = 30,044.05 × 14,708.39
  4. Step 4: Simplify right side
    21,772.40x = 441,899,417.59
  5. Step 5: Solve for x
    x = 441,899,417.59/21,772.40
  6. Step 6: Final answer
    x = 20,296.32

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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.