Home / 30,447.48-45,671.46-10,721.52

Finding the Fourth Proportional to 30,447.48, 45,671.46 and 10,721.52

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Solution

The fourth proportional to 30,447.48, 45,671.46 and 10,721.52 is: 16,082.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,447.48 : 45,671.46 = 10,721.52 : x
  2. Step 2: Convert to fraction form
    30,447.48/45,671.46 = 10,721.52/x
  3. Step 3: Cross multiply
    30,447.48x = 45,671.46 × 10,721.52
  4. Step 4: Simplify right side
    30,447.48x = 489,667,471.82
  5. Step 5: Solve for x
    x = 489,667,471.82/30,447.48
  6. Step 6: Final answer
    x = 16,082.36

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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.