Home / 31,634.47-47,428.06-19,151.49

Finding the Fourth Proportional to 31,634.47, 47,428.06 and 19,151.49

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Solution

The fourth proportional to 31,634.47, 47,428.06 and 19,151.49 is: 28,712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,634.47 : 47,428.06 = 19,151.49 : x
  2. Step 2: Convert to fraction form
    31,634.47/47,428.06 = 19,151.49/x
  3. Step 3: Cross multiply
    31,634.47x = 47,428.06 × 19,151.49
  4. Step 4: Simplify right side
    31,634.47x = 908,317,827.55
  5. Step 5: Solve for x
    x = 908,317,827.55/31,634.47
  6. Step 6: Final answer
    x = 28,712.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.