Home / 30,655.98-42,305.21-17,917.92

Finding the Fourth Proportional to 30,655.98, 42,305.21 and 17,917.92

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Solution

The fourth proportional to 30,655.98, 42,305.21 and 17,917.92 is: 24,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.98 : 42,305.21 = 17,917.92 : x
  2. Step 2: Convert to fraction form
    30,655.98/42,305.21 = 17,917.92/x
  3. Step 3: Cross multiply
    30,655.98x = 42,305.21 × 17,917.92
  4. Step 4: Simplify right side
    30,655.98x = 758,021,368.36
  5. Step 5: Solve for x
    x = 758,021,368.36/30,655.98
  6. Step 6: Final answer
    x = 24,726.70

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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.