Home / 31,299.51-43,192.40-17,870.39

Finding the Fourth Proportional to 31,299.51, 43,192.40 and 17,870.39

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Solution

The fourth proportional to 31,299.51, 43,192.40 and 17,870.39 is: 24,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,299.51 : 43,192.40 = 17,870.39 : x
  2. Step 2: Convert to fraction form
    31,299.51/43,192.40 = 17,870.39/x
  3. Step 3: Cross multiply
    31,299.51x = 43,192.40 × 17,870.39
  4. Step 4: Simplify right side
    31,299.51x = 771,864,727.72
  5. Step 5: Solve for x
    x = 771,864,727.72/31,299.51
  6. Step 6: Final answer
    x = 24,660.60

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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.