Home / 19,916.19-29,855.12-7,432.74

Finding the Fourth Proportional to 19,916.19, 29,855.12 and 7,432.74

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Solution

The fourth proportional to 19,916.19, 29,855.12 and 7,432.74 is: 11,141.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.19 : 29,855.12 = 7,432.74 : x
  2. Step 2: Convert to fraction form
    19,916.19/29,855.12 = 7,432.74/x
  3. Step 3: Cross multiply
    19,916.19x = 29,855.12 × 7,432.74
  4. Step 4: Simplify right side
    19,916.19x = 221,905,307.47
  5. Step 5: Solve for x
    x = 221,905,307.47/19,916.19
  6. Step 6: Final answer
    x = 11,141.96

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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.