Home / 30,279.69-45,419.81-10,558.22

Finding the Fourth Proportional to 30,279.69, 45,419.81 and 10,558.22

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Solution

The fourth proportional to 30,279.69, 45,419.81 and 10,558.22 is: 15,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.69 : 45,419.81 = 10,558.22 : x
  2. Step 2: Convert to fraction form
    30,279.69/45,419.81 = 10,558.22/x
  3. Step 3: Cross multiply
    30,279.69x = 45,419.81 × 10,558.22
  4. Step 4: Simplify right side
    30,279.69x = 479,552,066.45
  5. Step 5: Solve for x
    x = 479,552,066.45/30,279.69
  6. Step 6: Final answer
    x = 15,837.42

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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.