Home / 21,023.63-29,024.49-13,959.71

Finding the Fourth Proportional to 21,023.63, 29,024.49 and 13,959.71

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Solution

The fourth proportional to 21,023.63, 29,024.49 and 13,959.71 is: 19,272.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.63 : 29,024.49 = 13,959.71 : x
  2. Step 2: Convert to fraction form
    21,023.63/29,024.49 = 13,959.71/x
  3. Step 3: Cross multiply
    21,023.63x = 29,024.49 × 13,959.71
  4. Step 4: Simplify right side
    21,023.63x = 405,173,463.30
  5. Step 5: Solve for x
    x = 405,173,463.30/21,023.63
  6. Step 6: Final answer
    x = 19,272.29

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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.