Home / 30,144.93-45,223.87-10,156.41

Finding the Fourth Proportional to 30,144.93, 45,223.87 and 10,156.41

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Solution

The fourth proportional to 30,144.93, 45,223.87 and 10,156.41 is: 15,236.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.93 : 45,223.87 = 10,156.41 : x
  2. Step 2: Convert to fraction form
    30,144.93/45,223.87 = 10,156.41/x
  3. Step 3: Cross multiply
    30,144.93x = 45,223.87 × 10,156.41
  4. Step 4: Simplify right side
    30,144.93x = 459,312,027.66
  5. Step 5: Solve for x
    x = 459,312,027.66/30,144.93
  6. Step 6: Final answer
    x = 15,236.79

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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.