Home / 30,389.38-45,588.62-10,664.46

Finding the Fourth Proportional to 30,389.38, 45,588.62 and 10,664.46

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Solution

The fourth proportional to 30,389.38, 45,588.62 and 10,664.46 is: 15,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.38 : 45,588.62 = 10,664.46 : x
  2. Step 2: Convert to fraction form
    30,389.38/45,588.62 = 10,664.46/x
  3. Step 3: Cross multiply
    30,389.38x = 45,588.62 × 10,664.46
  4. Step 4: Simplify right side
    30,389.38x = 486,178,041.11
  5. Step 5: Solve for x
    x = 486,178,041.11/30,389.38
  6. Step 6: Final answer
    x = 15,998.29

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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.