Home / 30,671.48-42,330.66-18,095.96

Finding the Fourth Proportional to 30,671.48, 42,330.66 and 18,095.96

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Solution

The fourth proportional to 30,671.48, 42,330.66 and 18,095.96 is: 24,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,671.48 : 42,330.66 = 18,095.96 : x
  2. Step 2: Convert to fraction form
    30,671.48/42,330.66 = 18,095.96/x
  3. Step 3: Cross multiply
    30,671.48x = 42,330.66 × 18,095.96
  4. Step 4: Simplify right side
    30,671.48x = 766,013,930.13
  5. Step 5: Solve for x
    x = 766,013,930.13/30,671.48
  6. Step 6: Final answer
    x = 24,974.80

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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.