Home / 31,114.77-42,942.05-17,688.03

Finding the Fourth Proportional to 31,114.77, 42,942.05 and 17,688.03

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Solution

The fourth proportional to 31,114.77, 42,942.05 and 17,688.03 is: 24,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,114.77 : 42,942.05 = 17,688.03 : x
  2. Step 2: Convert to fraction form
    31,114.77/42,942.05 = 17,688.03/x
  3. Step 3: Cross multiply
    31,114.77x = 42,942.05 × 17,688.03
  4. Step 4: Simplify right side
    31,114.77x = 759,560,268.66
  5. Step 5: Solve for x
    x = 759,560,268.66/31,114.77
  6. Step 6: Final answer
    x = 24,411.57

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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.