Home / 34,415.20-47,490.10-19,305.76

Finding the Fourth Proportional to 34,415.20, 47,490.10 and 19,305.76

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Solution

The fourth proportional to 34,415.20, 47,490.10 and 19,305.76 is: 26,640.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,415.20 : 47,490.10 = 19,305.76 : x
  2. Step 2: Convert to fraction form
    34,415.20/47,490.10 = 19,305.76/x
  3. Step 3: Cross multiply
    34,415.20x = 47,490.10 × 19,305.76
  4. Step 4: Simplify right side
    34,415.20x = 916,832,472.98
  5. Step 5: Solve for x
    x = 916,832,472.98/34,415.20
  6. Step 6: Final answer
    x = 26,640.34

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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.