Home / 19,428.60-29,143.50-6,281.10

Finding the Fourth Proportional to 19,428.60, 29,143.50 and 6,281.10

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Solution

The fourth proportional to 19,428.60, 29,143.50 and 6,281.10 is: 9,421.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.60 : 29,143.50 = 6,281.10 : x
  2. Step 2: Convert to fraction form
    19,428.60/29,143.50 = 6,281.10/x
  3. Step 3: Cross multiply
    19,428.60x = 29,143.50 × 6,281.10
  4. Step 4: Simplify right side
    19,428.60x = 183,053,237.85
  5. Step 5: Solve for x
    x = 183,053,237.85/19,428.60
  6. Step 6: Final answer
    x = 9,421.84

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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.