Home / 42,546.24-63,808.80-12,956.40

Finding the Fourth Proportional to 42,546.24, 63,808.80 and 12,956.40

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Solution

The fourth proportional to 42,546.24, 63,808.80 and 12,956.40 is: 19,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,546.24 : 63,808.80 = 12,956.40 : x
  2. Step 2: Convert to fraction form
    42,546.24/63,808.80 = 12,956.40/x
  3. Step 3: Cross multiply
    42,546.24x = 63,808.80 × 12,956.40
  4. Step 4: Simplify right side
    42,546.24x = 826,732,336.32
  5. Step 5: Solve for x
    x = 826,732,336.32/42,546.24
  6. Step 6: Final answer
    x = 19,431.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.