Home / 31,746.15-43,800.21-18,317.16

Finding the Fourth Proportional to 31,746.15, 43,800.21 and 18,317.16

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Solution

The fourth proportional to 31,746.15, 43,800.21 and 18,317.16 is: 25,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,746.15 : 43,800.21 = 18,317.16 : x
  2. Step 2: Convert to fraction form
    31,746.15/43,800.21 = 18,317.16/x
  3. Step 3: Cross multiply
    31,746.15x = 43,800.21 × 18,317.16
  4. Step 4: Simplify right side
    31,746.15x = 802,295,454.60
  5. Step 5: Solve for x
    x = 802,295,454.60/31,746.15
  6. Step 6: Final answer
    x = 25,272.21

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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.