Home / 31,405.95-43,340.58-17,258.81

Finding the Fourth Proportional to 31,405.95, 43,340.58 and 17,258.81

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Solution

The fourth proportional to 31,405.95, 43,340.58 and 17,258.81 is: 23,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.95 : 43,340.58 = 17,258.81 : x
  2. Step 2: Convert to fraction form
    31,405.95/43,340.58 = 17,258.81/x
  3. Step 3: Cross multiply
    31,405.95x = 43,340.58 × 17,258.81
  4. Step 4: Simplify right side
    31,405.95x = 748,006,618.81
  5. Step 5: Solve for x
    x = 748,006,618.81/31,405.95
  6. Step 6: Final answer
    x = 23,817.35

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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.