Home / 20,255.47-27,952.59-11,303.50

Finding the Fourth Proportional to 20,255.47, 27,952.59 and 11,303.50

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Solution

The fourth proportional to 20,255.47, 27,952.59 and 11,303.50 is: 15,598.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.47 : 27,952.59 = 11,303.50 : x
  2. Step 2: Convert to fraction form
    20,255.47/27,952.59 = 11,303.50/x
  3. Step 3: Cross multiply
    20,255.47x = 27,952.59 × 11,303.50
  4. Step 4: Simplify right side
    20,255.47x = 315,962,125.98
  5. Step 5: Solve for x
    x = 315,962,125.98/20,255.47
  6. Step 6: Final answer
    x = 15,598.86

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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.