Home / 14,038.60-21,056.68-5,719.50

Finding the Fourth Proportional to 14,038.60, 21,056.68 and 5,719.50

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Solution

The fourth proportional to 14,038.60, 21,056.68 and 5,719.50 is: 8,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.60 : 21,056.68 = 5,719.50 : x
  2. Step 2: Convert to fraction form
    14,038.60/21,056.68 = 5,719.50/x
  3. Step 3: Cross multiply
    14,038.60x = 21,056.68 × 5,719.50
  4. Step 4: Simplify right side
    14,038.60x = 120,433,681.26
  5. Step 5: Solve for x
    x = 120,433,681.26/14,038.60
  6. Step 6: Final answer
    x = 8,578.75

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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.