Home / 21,915.36-30,244.95-12,484.62

Finding the Fourth Proportional to 21,915.36, 30,244.95 and 12,484.62

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Solution

The fourth proportional to 21,915.36, 30,244.95 and 12,484.62 is: 17,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915.36 : 30,244.95 = 12,484.62 : x
  2. Step 2: Convert to fraction form
    21,915.36/30,244.95 = 12,484.62/x
  3. Step 3: Cross multiply
    21,915.36x = 30,244.95 × 12,484.62
  4. Step 4: Simplify right side
    21,915.36x = 377,596,707.67
  5. Step 5: Solve for x
    x = 377,596,707.67/21,915.36
  6. Step 6: Final answer
    x = 17,229.77

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Double scale
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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.