Home / 31,567.64-43,565.65-18,142.16

Finding the Fourth Proportional to 31,567.64, 43,565.65 and 18,142.16

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Solution

The fourth proportional to 31,567.64, 43,565.65 and 18,142.16 is: 25,037.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,567.64 : 43,565.65 = 18,142.16 : x
  2. Step 2: Convert to fraction form
    31,567.64/43,565.65 = 18,142.16/x
  3. Step 3: Cross multiply
    31,567.64x = 43,565.65 × 18,142.16
  4. Step 4: Simplify right side
    31,567.64x = 790,374,729.62
  5. Step 5: Solve for x
    x = 790,374,729.62/31,567.64
  6. Step 6: Final answer
    x = 25,037.50

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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.