Home / 21,778.98-32,688.51-13,475.22

Finding the Fourth Proportional to 21,778.98, 32,688.51 and 13,475.22

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Solution

The fourth proportional to 21,778.98, 32,688.51 and 13,475.22 is: 20,225.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.98 : 32,688.51 = 13,475.22 : x
  2. Step 2: Convert to fraction form
    21,778.98/32,688.51 = 13,475.22/x
  3. Step 3: Cross multiply
    21,778.98x = 32,688.51 × 13,475.22
  4. Step 4: Simplify right side
    21,778.98x = 440,484,863.72
  5. Step 5: Solve for x
    x = 440,484,863.72/21,778.98
  6. Step 6: Final answer
    x = 20,225.23

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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.