Home / 16,915.32-23,349.60-15,143.76

Finding the Fourth Proportional to 16,915.32, 23,349.60 and 15,143.76

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Solution

The fourth proportional to 16,915.32, 23,349.60 and 15,143.76 is: 20,904.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.32 : 23,349.60 = 15,143.76 : x
  2. Step 2: Convert to fraction form
    16,915.32/23,349.60 = 15,143.76/x
  3. Step 3: Cross multiply
    16,915.32x = 23,349.60 × 15,143.76
  4. Step 4: Simplify right side
    16,915.32x = 353,600,738.50
  5. Step 5: Solve for x
    x = 353,600,738.50/16,915.32
  6. Step 6: Final answer
    x = 20,904.17

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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.