Home / 30,045.36-45,071.10-10,321.36

Finding the Fourth Proportional to 30,045.36, 45,071.10 and 10,321.36

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Solution

The fourth proportional to 30,045.36, 45,071.10 and 10,321.36 is: 15,483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,045.36 : 45,071.10 = 10,321.36 : x
  2. Step 2: Convert to fraction form
    30,045.36/45,071.10 = 10,321.36/x
  3. Step 3: Cross multiply
    30,045.36x = 45,071.10 × 10,321.36
  4. Step 4: Simplify right side
    30,045.36x = 465,195,048.70
  5. Step 5: Solve for x
    x = 465,195,048.70/30,045.36
  6. Step 6: Final answer
    x = 15,483.09

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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.