Home / 28,566.75-42,877.84-13,786.08

Finding the Fourth Proportional to 28,566.75, 42,877.84 and 13,786.08

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Solution

The fourth proportional to 28,566.75, 42,877.84 and 13,786.08 is: 20,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.75 : 42,877.84 = 13,786.08 : x
  2. Step 2: Convert to fraction form
    28,566.75/42,877.84 = 13,786.08/x
  3. Step 3: Cross multiply
    28,566.75x = 42,877.84 × 13,786.08
  4. Step 4: Simplify right side
    28,566.75x = 591,117,332.47
  5. Step 5: Solve for x
    x = 591,117,332.47/28,566.75
  6. Step 6: Final answer
    x = 20,692.50

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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.