Home / 30,386.70-45,600.24-10,665.36

Finding the Fourth Proportional to 30,386.70, 45,600.24 and 10,665.36

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Solution

The fourth proportional to 30,386.70, 45,600.24 and 10,665.36 is: 16,005.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,386.70 : 45,600.24 = 10,665.36 : x
  2. Step 2: Convert to fraction form
    30,386.70/45,600.24 = 10,665.36/x
  3. Step 3: Cross multiply
    30,386.70x = 45,600.24 × 10,665.36
  4. Step 4: Simplify right side
    30,386.70x = 486,342,975.69
  5. Step 5: Solve for x
    x = 486,342,975.69/30,386.70
  6. Step 6: Final answer
    x = 16,005.13

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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.