Home / 14,280.32-21,421.40-4,419.99

Finding the Fourth Proportional to 14,280.32, 21,421.40 and 4,419.99

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Solution

The fourth proportional to 14,280.32, 21,421.40 and 4,419.99 is: 6,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.32 : 21,421.40 = 4,419.99 : x
  2. Step 2: Convert to fraction form
    14,280.32/21,421.40 = 4,419.99/x
  3. Step 3: Cross multiply
    14,280.32x = 21,421.40 × 4,419.99
  4. Step 4: Simplify right side
    14,280.32x = 94,682,351.69
  5. Step 5: Solve for x
    x = 94,682,351.69/14,280.32
  6. Step 6: Final answer
    x = 6,630.27

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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.