Home / 30,113.78-45,170.26-9,337.28

Finding the Fourth Proportional to 30,113.78, 45,170.26 and 9,337.28

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Solution

The fourth proportional to 30,113.78, 45,170.26 and 9,337.28 is: 14,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,113.78 : 45,170.26 = 9,337.28 : x
  2. Step 2: Convert to fraction form
    30,113.78/45,170.26 = 9,337.28/x
  3. Step 3: Cross multiply
    30,113.78x = 45,170.26 × 9,337.28
  4. Step 4: Simplify right side
    30,113.78x = 421,767,365.29
  5. Step 5: Solve for x
    x = 421,767,365.29/30,113.78
  6. Step 6: Final answer
    x = 14,005.79

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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.