Home / 31,700.40-43,742.34-17,551.32

Finding the Fourth Proportional to 31,700.40, 43,742.34 and 17,551.32

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Solution

The fourth proportional to 31,700.40, 43,742.34 and 17,551.32 is: 24,218.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,700.40 : 43,742.34 = 17,551.32 : x
  2. Step 2: Convert to fraction form
    31,700.40/43,742.34 = 17,551.32/x
  3. Step 3: Cross multiply
    31,700.40x = 43,742.34 × 17,551.32
  4. Step 4: Simplify right side
    31,700.40x = 767,735,806.89
  5. Step 5: Solve for x
    x = 767,735,806.89/31,700.40
  6. Step 6: Final answer
    x = 24,218.49

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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.