Home / 31,421.34-43,361.48-17,275.10

Finding the Fourth Proportional to 31,421.34, 43,361.48 and 17,275.10

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Solution

The fourth proportional to 31,421.34, 43,361.48 and 17,275.10 is: 23,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.34 : 43,361.48 = 17,275.10 : x
  2. Step 2: Convert to fraction form
    31,421.34/43,361.48 = 17,275.10/x
  3. Step 3: Cross multiply
    31,421.34x = 43,361.48 × 17,275.10
  4. Step 4: Simplify right side
    31,421.34x = 749,073,903.15
  5. Step 5: Solve for x
    x = 749,073,903.15/31,421.34
  6. Step 6: Final answer
    x = 23,839.65

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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.