Home / 30,117.78-45,176.22-9,341.28

Finding the Fourth Proportional to 30,117.78, 45,176.22 and 9,341.28

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Solution

The fourth proportional to 30,117.78, 45,176.22 and 9,341.28 is: 14,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.78 : 45,176.22 = 9,341.28 : x
  2. Step 2: Convert to fraction form
    30,117.78/45,176.22 = 9,341.28/x
  3. Step 3: Cross multiply
    30,117.78x = 45,176.22 × 9,341.28
  4. Step 4: Simplify right side
    30,117.78x = 422,003,720.36
  5. Step 5: Solve for x
    x = 422,003,720.36/30,117.78
  6. Step 6: Final answer
    x = 14,011.78

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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.