Home / 21,282.02-29,386.41-13,732.10

Finding the Fourth Proportional to 21,282.02, 29,386.41 and 13,732.10

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Solution

The fourth proportional to 21,282.02, 29,386.41 and 13,732.10 is: 18,961.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.02 : 29,386.41 = 13,732.10 : x
  2. Step 2: Convert to fraction form
    21,282.02/29,386.41 = 13,732.10/x
  3. Step 3: Cross multiply
    21,282.02x = 29,386.41 × 13,732.10
  4. Step 4: Simplify right side
    21,282.02x = 403,537,120.76
  5. Step 5: Solve for x
    x = 403,537,120.76/21,282.02
  6. Step 6: Final answer
    x = 18,961.41

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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.