Home / 20,952.32-28,901.76-18,152.96

Finding the Fourth Proportional to 20,952.32, 28,901.76 and 18,152.96

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Solution

The fourth proportional to 20,952.32, 28,901.76 and 18,152.96 is: 25,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.32 : 28,901.76 = 18,152.96 : x
  2. Step 2: Convert to fraction form
    20,952.32/28,901.76 = 18,152.96/x
  3. Step 3: Cross multiply
    20,952.32x = 28,901.76 × 18,152.96
  4. Step 4: Simplify right side
    20,952.32x = 524,652,493.21
  5. Step 5: Solve for x
    x = 524,652,493.21/20,952.32
  6. Step 6: Final answer
    x = 25,040.31

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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.