Home / 31,477.01-43,428.47-17,862.80

Finding the Fourth Proportional to 31,477.01, 43,428.47 and 17,862.80

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Solution

The fourth proportional to 31,477.01, 43,428.47 and 17,862.80 is: 24,645.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.01 : 43,428.47 = 17,862.80 : x
  2. Step 2: Convert to fraction form
    31,477.01/43,428.47 = 17,862.80/x
  3. Step 3: Cross multiply
    31,477.01x = 43,428.47 × 17,862.80
  4. Step 4: Simplify right side
    31,477.01x = 775,753,767.46
  5. Step 5: Solve for x
    x = 775,753,767.46/31,477.01
  6. Step 6: Final answer
    x = 24,645.09

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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.