Home / 14,319.10-21,455.16-13,772.35

Finding the Fourth Proportional to 14,319.10, 21,455.16 and 13,772.35

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Solution

The fourth proportional to 14,319.10, 21,455.16 and 13,772.35 is: 20,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.10 : 21,455.16 = 13,772.35 : x
  2. Step 2: Convert to fraction form
    14,319.10/21,455.16 = 13,772.35/x
  3. Step 3: Cross multiply
    14,319.10x = 21,455.16 × 13,772.35
  4. Step 4: Simplify right side
    14,319.10x = 295,487,972.83
  5. Step 5: Solve for x
    x = 295,487,972.83/14,319.10
  6. Step 6: Final answer
    x = 20,635.93

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1.5x scale

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.