Home / 28,071.92-42,106.08-10,540.24

Finding the Fourth Proportional to 28,071.92, 42,106.08 and 10,540.24

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Solution

The fourth proportional to 28,071.92, 42,106.08 and 10,540.24 is: 15,809.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.92 : 42,106.08 = 10,540.24 : x
  2. Step 2: Convert to fraction form
    28,071.92/42,106.08 = 10,540.24/x
  3. Step 3: Cross multiply
    28,071.92x = 42,106.08 × 10,540.24
  4. Step 4: Simplify right side
    28,071.92x = 443,808,188.66
  5. Step 5: Solve for x
    x = 443,808,188.66/28,071.92
  6. Step 6: Final answer
    x = 15,809.68

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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.