Home / 21,519.17-29,698.75-12,569.58

Finding the Fourth Proportional to 21,519.17, 29,698.75 and 12,569.58

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Solution

The fourth proportional to 21,519.17, 29,698.75 and 12,569.58 is: 17,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519.17 : 29,698.75 = 12,569.58 : x
  2. Step 2: Convert to fraction form
    21,519.17/29,698.75 = 12,569.58/x
  3. Step 3: Cross multiply
    21,519.17x = 29,698.75 × 12,569.58
  4. Step 4: Simplify right side
    21,519.17x = 373,300,829.74
  5. Step 5: Solve for x
    x = 373,300,829.74/21,519.17
  6. Step 6: Final answer
    x = 17,347.36

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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.