Home / 15,811.02-23,720.85-5,423.58

Finding the Fourth Proportional to 15,811.02, 23,720.85 and 5,423.58

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Solution

The fourth proportional to 15,811.02, 23,720.85 and 5,423.58 is: 8,136.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.02 : 23,720.85 = 5,423.58 : x
  2. Step 2: Convert to fraction form
    15,811.02/23,720.85 = 5,423.58/x
  3. Step 3: Cross multiply
    15,811.02x = 23,720.85 × 5,423.58
  4. Step 4: Simplify right side
    15,811.02x = 128,651,927.64
  5. Step 5: Solve for x
    x = 128,651,927.64/15,811.02
  6. Step 6: Final answer
    x = 8,136.85

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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.