Home / 42,431.58-63,644.94-14,342.13

Finding the Fourth Proportional to 42,431.58, 63,644.94 and 14,342.13

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Solution

The fourth proportional to 42,431.58, 63,644.94 and 14,342.13 is: 21,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,431.58 : 63,644.94 = 14,342.13 : x
  2. Step 2: Convert to fraction form
    42,431.58/63,644.94 = 14,342.13/x
  3. Step 3: Cross multiply
    42,431.58x = 63,644.94 × 14,342.13
  4. Step 4: Simplify right side
    42,431.58x = 912,804,003.32
  5. Step 5: Solve for x
    x = 912,804,003.32/42,431.58
  6. Step 6: Final answer
    x = 21,512.37

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1.5x scale

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.