Home / 20,606.19-30,861.21-15,045.74

Finding the Fourth Proportional to 20,606.19, 30,861.21 and 15,045.74

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Solution

The fourth proportional to 20,606.19, 30,861.21 and 15,045.74 is: 22,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.19 : 30,861.21 = 15,045.74 : x
  2. Step 2: Convert to fraction form
    20,606.19/30,861.21 = 15,045.74/x
  3. Step 3: Cross multiply
    20,606.19x = 30,861.21 × 15,045.74
  4. Step 4: Simplify right side
    20,606.19x = 464,329,818.90
  5. Step 5: Solve for x
    x = 464,329,818.90/20,606.19
  6. Step 6: Final answer
    x = 22,533.51

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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.