Home / 30,416.13-45,622.82-10,427.40

Finding the Fourth Proportional to 30,416.13, 45,622.82 and 10,427.40

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Solution

The fourth proportional to 30,416.13, 45,622.82 and 10,427.40 is: 15,640.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416.13 : 45,622.82 = 10,427.40 : x
  2. Step 2: Convert to fraction form
    30,416.13/45,622.82 = 10,427.40/x
  3. Step 3: Cross multiply
    30,416.13x = 45,622.82 × 10,427.40
  4. Step 4: Simplify right side
    30,416.13x = 475,727,393.27
  5. Step 5: Solve for x
    x = 475,727,393.27/30,416.13
  6. Step 6: Final answer
    x = 15,640.63

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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.