Home / 31,421.55-43,361.55-17,809.53

Finding the Fourth Proportional to 31,421.55, 43,361.55 and 17,809.53

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Solution

The fourth proportional to 31,421.55, 43,361.55 and 17,809.53 is: 24,577.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.55 : 43,361.55 = 17,809.53 : x
  2. Step 2: Convert to fraction form
    31,421.55/43,361.55 = 17,809.53/x
  3. Step 3: Cross multiply
    31,421.55x = 43,361.55 × 17,809.53
  4. Step 4: Simplify right side
    31,421.55x = 772,248,630.84
  5. Step 5: Solve for x
    x = 772,248,630.84/31,421.55
  6. Step 6: Final answer
    x = 24,577.04

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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.