Home / 30,901.14-42,647.85-22,930.74

Finding the Fourth Proportional to 30,901.14, 42,647.85 and 22,930.74

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Solution

The fourth proportional to 30,901.14, 42,647.85 and 22,930.74 is: 31,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,901.14 : 42,647.85 = 22,930.74 : x
  2. Step 2: Convert to fraction form
    30,901.14/42,647.85 = 22,930.74/x
  3. Step 3: Cross multiply
    30,901.14x = 42,647.85 × 22,930.74
  4. Step 4: Simplify right side
    30,901.14x = 977,946,759.91
  5. Step 5: Solve for x
    x = 977,946,759.91/30,901.14
  6. Step 6: Final answer
    x = 31,647.59

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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.