Home / 31,080.45-42,886.23-17,465.81

Finding the Fourth Proportional to 31,080.45, 42,886.23 and 17,465.81

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Solution

The fourth proportional to 31,080.45, 42,886.23 and 17,465.81 is: 24,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,080.45 : 42,886.23 = 17,465.81 : x
  2. Step 2: Convert to fraction form
    31,080.45/42,886.23 = 17,465.81/x
  3. Step 3: Cross multiply
    31,080.45x = 42,886.23 × 17,465.81
  4. Step 4: Simplify right side
    31,080.45x = 749,042,744.80
  5. Step 5: Solve for x
    x = 749,042,744.80/31,080.45
  6. Step 6: Final answer
    x = 24,100.13

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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.