Home / 21,599.64-29,807.48-12,168.28

Finding the Fourth Proportional to 21,599.64, 29,807.48 and 12,168.28

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Solution

The fourth proportional to 21,599.64, 29,807.48 and 12,168.28 is: 16,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.64 : 29,807.48 = 12,168.28 : x
  2. Step 2: Convert to fraction form
    21,599.64/29,807.48 = 12,168.28/x
  3. Step 3: Cross multiply
    21,599.64x = 29,807.48 × 12,168.28
  4. Step 4: Simplify right side
    21,599.64x = 362,705,762.73
  5. Step 5: Solve for x
    x = 362,705,762.73/21,599.64
  6. Step 6: Final answer
    x = 16,792.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.