Home / 31,335.15-43,242.21-17,188.05

Finding the Fourth Proportional to 31,335.15, 43,242.21 and 17,188.05

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Solution

The fourth proportional to 31,335.15, 43,242.21 and 17,188.05 is: 23,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335.15 : 43,242.21 = 17,188.05 : x
  2. Step 2: Convert to fraction form
    31,335.15/43,242.21 = 17,188.05/x
  3. Step 3: Cross multiply
    31,335.15x = 43,242.21 × 17,188.05
  4. Step 4: Simplify right side
    31,335.15x = 743,249,267.59
  5. Step 5: Solve for x
    x = 743,249,267.59/31,335.15
  6. Step 6: Final answer
    x = 23,719.35

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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.