Home / 30,246.96-45,331.02-15,443.40

Finding the Fourth Proportional to 30,246.96, 45,331.02 and 15,443.40

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Solution

The fourth proportional to 30,246.96, 45,331.02 and 15,443.40 is: 23,144.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.96 : 45,331.02 = 15,443.40 : x
  2. Step 2: Convert to fraction form
    30,246.96/45,331.02 = 15,443.40/x
  3. Step 3: Cross multiply
    30,246.96x = 45,331.02 × 15,443.40
  4. Step 4: Simplify right side
    30,246.96x = 700,064,997.05
  5. Step 5: Solve for x
    x = 700,064,997.05/30,246.96
  6. Step 6: Final answer
    x = 23,144.97

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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.