Home / 30,156.70-45,239.10-10,441.30

Finding the Fourth Proportional to 30,156.70, 45,239.10 and 10,441.30

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Solution

The fourth proportional to 30,156.70, 45,239.10 and 10,441.30 is: 15,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.70 : 45,239.10 = 10,441.30 : x
  2. Step 2: Convert to fraction form
    30,156.70/45,239.10 = 10,441.30/x
  3. Step 3: Cross multiply
    30,156.70x = 45,239.10 × 10,441.30
  4. Step 4: Simplify right side
    30,156.70x = 472,355,014.83
  5. Step 5: Solve for x
    x = 472,355,014.83/30,156.70
  6. Step 6: Final answer
    x = 15,663.35

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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.