Home / 30,491.17-45,736.76-20,100.49

Finding the Fourth Proportional to 30,491.17, 45,736.76 and 20,100.49

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Solution

The fourth proportional to 30,491.17, 45,736.76 and 20,100.49 is: 30,150.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,491.17 : 45,736.76 = 20,100.49 : x
  2. Step 2: Convert to fraction form
    30,491.17/45,736.76 = 20,100.49/x
  3. Step 3: Cross multiply
    30,491.17x = 45,736.76 × 20,100.49
  4. Step 4: Simplify right side
    30,491.17x = 919,331,222.92
  5. Step 5: Solve for x
    x = 919,331,222.92/30,491.17
  6. Step 6: Final answer
    x = 30,150.74

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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.