Home / 20,848.20-28,783.98-18,606.24

Finding the Fourth Proportional to 20,848.20, 28,783.98 and 18,606.24

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Solution

The fourth proportional to 20,848.20, 28,783.98 and 18,606.24 is: 25,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.20 : 28,783.98 = 18,606.24 : x
  2. Step 2: Convert to fraction form
    20,848.20/28,783.98 = 18,606.24/x
  3. Step 3: Cross multiply
    20,848.20x = 28,783.98 × 18,606.24
  4. Step 4: Simplify right side
    20,848.20x = 535,561,640.04
  5. Step 5: Solve for x
    x = 535,561,640.04/20,848.20
  6. Step 6: Final answer
    x = 25,688.63

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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.