Home / 30,181.48-45,269.02-18,474.28

Finding the Fourth Proportional to 30,181.48, 45,269.02 and 18,474.28

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Solution

The fourth proportional to 30,181.48, 45,269.02 and 18,474.28 is: 27,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,181.48 : 45,269.02 = 18,474.28 : x
  2. Step 2: Convert to fraction form
    30,181.48/45,269.02 = 18,474.28/x
  3. Step 3: Cross multiply
    30,181.48x = 45,269.02 × 18,474.28
  4. Step 4: Simplify right side
    30,181.48x = 836,312,550.81
  5. Step 5: Solve for x
    x = 836,312,550.81/30,181.48
  6. Step 6: Final answer
    x = 27,709.46

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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.