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Finding the Fourth Proportional to 20,599.98, 30,901.20 and 5,810.16

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Solution

The fourth proportional to 20,599.98, 30,901.20 and 5,810.16 is: 8,715.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.98 : 30,901.20 = 5,810.16 : x
  2. Step 2: Convert to fraction form
    20,599.98/30,901.20 = 5,810.16/x
  3. Step 3: Cross multiply
    20,599.98x = 30,901.20 × 5,810.16
  4. Step 4: Simplify right side
    20,599.98x = 179,540,916.19
  5. Step 5: Solve for x
    x = 179,540,916.19/20,599.98
  6. Step 6: Final answer
    x = 8,715.59

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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.