Home / 19,156.02-28,719.68-12,898.46

Finding the Fourth Proportional to 19,156.02, 28,719.68 and 12,898.46

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Solution

The fourth proportional to 19,156.02, 28,719.68 and 12,898.46 is: 19,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.02 : 28,719.68 = 12,898.46 : x
  2. Step 2: Convert to fraction form
    19,156.02/28,719.68 = 12,898.46/x
  3. Step 3: Cross multiply
    19,156.02x = 28,719.68 × 12,898.46
  4. Step 4: Simplify right side
    19,156.02x = 370,439,643.69
  5. Step 5: Solve for x
    x = 370,439,643.69/19,156.02
  6. Step 6: Final answer
    x = 19,338.03

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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.