Home / 30,076.48-45,125.18-13,434.90

Finding the Fourth Proportional to 30,076.48, 45,125.18 and 13,434.90

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Solution

The fourth proportional to 30,076.48, 45,125.18 and 13,434.90 is: 20,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,076.48 : 45,125.18 = 13,434.90 : x
  2. Step 2: Convert to fraction form
    30,076.48/45,125.18 = 13,434.90/x
  3. Step 3: Cross multiply
    30,076.48x = 45,125.18 × 13,434.90
  4. Step 4: Simplify right side
    30,076.48x = 606,252,280.78
  5. Step 5: Solve for x
    x = 606,252,280.78/30,076.48
  6. Step 6: Final answer
    x = 20,157.02

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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.