Home / 40,490.21-55,876.11-22,341.10

Finding the Fourth Proportional to 40,490.21, 55,876.11 and 22,341.10

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Solution

The fourth proportional to 40,490.21, 55,876.11 and 22,341.10 is: 30,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,490.21 : 55,876.11 = 22,341.10 : x
  2. Step 2: Convert to fraction form
    40,490.21/55,876.11 = 22,341.10/x
  3. Step 3: Cross multiply
    40,490.21x = 55,876.11 × 22,341.10
  4. Step 4: Simplify right side
    40,490.21x = 1,248,333,938.98
  5. Step 5: Solve for x
    x = 1,248,333,938.98/40,490.21
  6. Step 6: Final answer
    x = 30,830.51

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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.