Home / 27,567.40-38,040.50-15,631.80

Finding the Fourth Proportional to 27,567.40, 38,040.50 and 15,631.80

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Solution

The fourth proportional to 27,567.40, 38,040.50 and 15,631.80 is: 21,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,567.40 : 38,040.50 = 15,631.80 : x
  2. Step 2: Convert to fraction form
    27,567.40/38,040.50 = 15,631.80/x
  3. Step 3: Cross multiply
    27,567.40x = 38,040.50 × 15,631.80
  4. Step 4: Simplify right side
    27,567.40x = 594,641,487.90
  5. Step 5: Solve for x
    x = 594,641,487.90/27,567.40
  6. Step 6: Final answer
    x = 21,570.46

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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.