Home / 31,730.31-43,792.50-18,298.95

Finding the Fourth Proportional to 31,730.31, 43,792.50 and 18,298.95

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Solution

The fourth proportional to 31,730.31, 43,792.50 and 18,298.95 is: 25,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730.31 : 43,792.50 = 18,298.95 : x
  2. Step 2: Convert to fraction form
    31,730.31/43,792.50 = 18,298.95/x
  3. Step 3: Cross multiply
    31,730.31x = 43,792.50 × 18,298.95
  4. Step 4: Simplify right side
    31,730.31x = 801,356,767.88
  5. Step 5: Solve for x
    x = 801,356,767.88/31,730.31
  6. Step 6: Final answer
    x = 25,255.25

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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.