Home / 22,089.28-30,482.08-13,136.64

Finding the Fourth Proportional to 22,089.28, 30,482.08 and 13,136.64

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Solution

The fourth proportional to 22,089.28, 30,482.08 and 13,136.64 is: 18,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,089.28 : 30,482.08 = 13,136.64 : x
  2. Step 2: Convert to fraction form
    22,089.28/30,482.08 = 13,136.64/x
  3. Step 3: Cross multiply
    22,089.28x = 30,482.08 × 13,136.64
  4. Step 4: Simplify right side
    22,089.28x = 400,432,111.41
  5. Step 5: Solve for x
    x = 400,432,111.41/22,089.28
  6. Step 6: Final answer
    x = 18,127.89

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Double scale
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Similar ratio
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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.