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Finding the Fourth Proportional to 35,390.10, 48,840.10 and 19,474.40

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Solution

The fourth proportional to 35,390.10, 48,840.10 and 19,474.40 is: 26,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,390.10 : 48,840.10 = 19,474.40 : x
  2. Step 2: Convert to fraction form
    35,390.10/48,840.10 = 19,474.40/x
  3. Step 3: Cross multiply
    35,390.10x = 48,840.10 × 19,474.40
  4. Step 4: Simplify right side
    35,390.10x = 951,131,643.44
  5. Step 5: Solve for x
    x = 951,131,643.44/35,390.10
  6. Step 6: Final answer
    x = 26,875.64

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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.