Home / 28,307.54-42,467.42-8,587.69

Finding the Fourth Proportional to 28,307.54, 42,467.42 and 8,587.69

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Solution

The fourth proportional to 28,307.54, 42,467.42 and 8,587.69 is: 12,883.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.54 : 42,467.42 = 8,587.69 : x
  2. Step 2: Convert to fraction form
    28,307.54/42,467.42 = 8,587.69/x
  3. Step 3: Cross multiply
    28,307.54x = 42,467.42 × 8,587.69
  4. Step 4: Simplify right side
    28,307.54x = 364,696,953.36
  5. Step 5: Solve for x
    x = 364,696,953.36/28,307.54
  6. Step 6: Final answer
    x = 12,883.38

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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.