Home / 33,128.02-45,701.31-19,691.74

Finding the Fourth Proportional to 33,128.02, 45,701.31 and 19,691.74

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Solution

The fourth proportional to 33,128.02, 45,701.31 and 19,691.74 is: 27,165.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,128.02 : 45,701.31 = 19,691.74 : x
  2. Step 2: Convert to fraction form
    33,128.02/45,701.31 = 19,691.74/x
  3. Step 3: Cross multiply
    33,128.02x = 45,701.31 × 19,691.74
  4. Step 4: Simplify right side
    33,128.02x = 899,938,314.18
  5. Step 5: Solve for x
    x = 899,938,314.18/33,128.02
  6. Step 6: Final answer
    x = 27,165.47

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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.