Home / 31,487.64-47,196.78-27,798.90

Finding the Fourth Proportional to 31,487.64, 47,196.78 and 27,798.90

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Solution

The fourth proportional to 31,487.64, 47,196.78 and 27,798.90 is: 41,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.64 : 47,196.78 = 27,798.90 : x
  2. Step 2: Convert to fraction form
    31,487.64/47,196.78 = 27,798.90/x
  3. Step 3: Cross multiply
    31,487.64x = 47,196.78 × 27,798.90
  4. Step 4: Simplify right side
    31,487.64x = 1,312,018,567.54
  5. Step 5: Solve for x
    x = 1,312,018,567.54/31,487.64
  6. Step 6: Final answer
    x = 41,667.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.