Home / 33,862.81-46,731.02-20,431.47

Finding the Fourth Proportional to 33,862.81, 46,731.02 and 20,431.47

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Solution

The fourth proportional to 33,862.81, 46,731.02 and 20,431.47 is: 28,195.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,862.81 : 46,731.02 = 20,431.47 : x
  2. Step 2: Convert to fraction form
    33,862.81/46,731.02 = 20,431.47/x
  3. Step 3: Cross multiply
    33,862.81x = 46,731.02 × 20,431.47
  4. Step 4: Simplify right side
    33,862.81x = 954,783,199.54
  5. Step 5: Solve for x
    x = 954,783,199.54/33,862.81
  6. Step 6: Final answer
    x = 28,195.63

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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.