Home / 28,208.08-42,312.12-14,366.80

Finding the Fourth Proportional to 28,208.08, 42,312.12 and 14,366.80

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Solution

The fourth proportional to 28,208.08, 42,312.12 and 14,366.80 is: 21,550.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.08 : 42,312.12 = 14,366.80 : x
  2. Step 2: Convert to fraction form
    28,208.08/42,312.12 = 14,366.80/x
  3. Step 3: Cross multiply
    28,208.08x = 42,312.12 × 14,366.80
  4. Step 4: Simplify right side
    28,208.08x = 607,889,765.62
  5. Step 5: Solve for x
    x = 607,889,765.62/28,208.08
  6. Step 6: Final answer
    x = 21,550.20

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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.