Home / 28,366.12-42,555.50-8,646.21

Finding the Fourth Proportional to 28,366.12, 42,555.50 and 8,646.21

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Solution

The fourth proportional to 28,366.12, 42,555.50 and 8,646.21 is: 12,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.12 : 42,555.50 = 8,646.21 : x
  2. Step 2: Convert to fraction form
    28,366.12/42,555.50 = 8,646.21/x
  3. Step 3: Cross multiply
    28,366.12x = 42,555.50 × 8,646.21
  4. Step 4: Simplify right side
    28,366.12x = 367,943,789.66
  5. Step 5: Solve for x
    x = 367,943,789.66/28,366.12
  6. Step 6: Final answer
    x = 12,971.24

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Double scale
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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.