Home / 20,563.55-28,363.02-14,192.55

Finding the Fourth Proportional to 20,563.55, 28,363.02 and 14,192.55

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Solution

The fourth proportional to 20,563.55, 28,363.02 and 14,192.55 is: 19,575.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.55 : 28,363.02 = 14,192.55 : x
  2. Step 2: Convert to fraction form
    20,563.55/28,363.02 = 14,192.55/x
  3. Step 3: Cross multiply
    20,563.55x = 28,363.02 × 14,192.55
  4. Step 4: Simplify right side
    20,563.55x = 402,543,579.50
  5. Step 5: Solve for x
    x = 402,543,579.50/20,563.55
  6. Step 6: Final answer
    x = 19,575.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.