Home / 31,233.60-43,106.40-19,302.72

Finding the Fourth Proportional to 31,233.60, 43,106.40 and 19,302.72

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Solution

The fourth proportional to 31,233.60, 43,106.40 and 19,302.72 is: 26,640.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,233.60 : 43,106.40 = 19,302.72 : x
  2. Step 2: Convert to fraction form
    31,233.60/43,106.40 = 19,302.72/x
  3. Step 3: Cross multiply
    31,233.60x = 43,106.40 × 19,302.72
  4. Step 4: Simplify right side
    31,233.60x = 832,070,769.41
  5. Step 5: Solve for x
    x = 832,070,769.41/31,233.60
  6. Step 6: Final answer
    x = 26,640.25

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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.