Home / 30,041.89-45,049.16-15,998.31

Finding the Fourth Proportional to 30,041.89, 45,049.16 and 15,998.31

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Solution

The fourth proportional to 30,041.89, 45,049.16 and 15,998.31 is: 23,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.89 : 45,049.16 = 15,998.31 : x
  2. Step 2: Convert to fraction form
    30,041.89/45,049.16 = 15,998.31/x
  3. Step 3: Cross multiply
    30,041.89x = 45,049.16 × 15,998.31
  4. Step 4: Simplify right side
    30,041.89x = 720,710,466.92
  5. Step 5: Solve for x
    x = 720,710,466.92/30,041.89
  6. Step 6: Final answer
    x = 23,990.19

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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.