Home / 20,606.28-28,437.48-12,108.48

Finding the Fourth Proportional to 20,606.28, 28,437.48 and 12,108.48

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Solution

The fourth proportional to 20,606.28, 28,437.48 and 12,108.48 is: 16,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.28 : 28,437.48 = 12,108.48 : x
  2. Step 2: Convert to fraction form
    20,606.28/28,437.48 = 12,108.48/x
  3. Step 3: Cross multiply
    20,606.28x = 28,437.48 × 12,108.48
  4. Step 4: Simplify right side
    20,606.28x = 344,334,657.83
  5. Step 5: Solve for x
    x = 344,334,657.83/20,606.28
  6. Step 6: Final answer
    x = 16,710.18

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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.