Home / 31,155.95-42,997.67-17,727.77

Finding the Fourth Proportional to 31,155.95, 42,997.67 and 17,727.77

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Solution

The fourth proportional to 31,155.95, 42,997.67 and 17,727.77 is: 24,465.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,155.95 : 42,997.67 = 17,727.77 : x
  2. Step 2: Convert to fraction form
    31,155.95/42,997.67 = 17,727.77/x
  3. Step 3: Cross multiply
    31,155.95x = 42,997.67 × 17,727.77
  4. Step 4: Simplify right side
    31,155.95x = 762,252,889.63
  5. Step 5: Solve for x
    x = 762,252,889.63/31,155.95
  6. Step 6: Final answer
    x = 24,465.72

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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.