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Finding the Fourth Proportional to 35,855.52, 49,487.12 and 20,746.40

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Solution

The fourth proportional to 35,855.52, 49,487.12 and 20,746.40 is: 28,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,855.52 : 49,487.12 = 20,746.40 : x
  2. Step 2: Convert to fraction form
    35,855.52/49,487.12 = 20,746.40/x
  3. Step 3: Cross multiply
    35,855.52x = 49,487.12 × 20,746.40
  4. Step 4: Simplify right side
    35,855.52x = 1,026,679,586.37
  5. Step 5: Solve for x
    x = 1,026,679,586.37/35,855.52
  6. Step 6: Final answer
    x = 28,633.79

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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.