Home / 28,567.02-42,878.20-13,786.32

Finding the Fourth Proportional to 28,567.02, 42,878.20 and 13,786.32

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Solution

The fourth proportional to 28,567.02, 42,878.20 and 13,786.32 is: 20,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,567.02 : 42,878.20 = 13,786.32 : x
  2. Step 2: Convert to fraction form
    28,567.02/42,878.20 = 13,786.32/x
  3. Step 3: Cross multiply
    28,567.02x = 42,878.20 × 13,786.32
  4. Step 4: Simplify right side
    28,567.02x = 591,132,586.22
  5. Step 5: Solve for x
    x = 591,132,586.22/28,567.02
  6. Step 6: Final answer
    x = 20,692.83

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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.