Home / 20,248.52-30,374.60-5,457.51

Finding the Fourth Proportional to 20,248.52, 30,374.60 and 5,457.51

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Solution

The fourth proportional to 20,248.52, 30,374.60 and 5,457.51 is: 8,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.52 : 30,374.60 = 5,457.51 : x
  2. Step 2: Convert to fraction form
    20,248.52/30,374.60 = 5,457.51/x
  3. Step 3: Cross multiply
    20,248.52x = 30,374.60 × 5,457.51
  4. Step 4: Simplify right side
    20,248.52x = 165,769,655.96
  5. Step 5: Solve for x
    x = 165,769,655.96/20,248.52
  6. Step 6: Final answer
    x = 8,186.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.