Home / 30,146.73-45,210.84-20,846.52

Finding the Fourth Proportional to 30,146.73, 45,210.84 and 20,846.52

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Solution

The fourth proportional to 30,146.73, 45,210.84 and 20,846.52 is: 31,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146.73 : 45,210.84 = 20,846.52 : x
  2. Step 2: Convert to fraction form
    30,146.73/45,210.84 = 20,846.52/x
  3. Step 3: Cross multiply
    30,146.73x = 45,210.84 × 20,846.52
  4. Step 4: Simplify right side
    30,146.73x = 942,488,680.28
  5. Step 5: Solve for x
    x = 942,488,680.28/30,146.73
  6. Step 6: Final answer
    x = 31,263.38

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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.