Home / 28,559.72-42,840.78-8,838.66

Finding the Fourth Proportional to 28,559.72, 42,840.78 and 8,838.66

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Solution

The fourth proportional to 28,559.72, 42,840.78 and 8,838.66 is: 13,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.72 : 42,840.78 = 8,838.66 : x
  2. Step 2: Convert to fraction form
    28,559.72/42,840.78 = 8,838.66/x
  3. Step 3: Cross multiply
    28,559.72x = 42,840.78 × 8,838.66
  4. Step 4: Simplify right side
    28,559.72x = 378,655,088.55
  5. Step 5: Solve for x
    x = 378,655,088.55/28,559.72
  6. Step 6: Final answer
    x = 13,258.36

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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.