Home / 14,327.28-21,317.58-13,970.16

Finding the Fourth Proportional to 14,327.28, 21,317.58 and 13,970.16

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Solution

The fourth proportional to 14,327.28, 21,317.58 and 13,970.16 is: 20,786.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,327.28 : 21,317.58 = 13,970.16 : x
  2. Step 2: Convert to fraction form
    14,327.28/21,317.58 = 13,970.16/x
  3. Step 3: Cross multiply
    14,327.28x = 21,317.58 × 13,970.16
  4. Step 4: Simplify right side
    14,327.28x = 297,810,003.41
  5. Step 5: Solve for x
    x = 297,810,003.41/14,327.28
  6. Step 6: Final answer
    x = 20,786.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.