Home / 20,441.10-28,208.96-12,374.64

Finding the Fourth Proportional to 20,441.10, 28,208.96 and 12,374.64

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Solution

The fourth proportional to 20,441.10, 28,208.96 and 12,374.64 is: 17,077.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.10 : 28,208.96 = 12,374.64 : x
  2. Step 2: Convert to fraction form
    20,441.10/28,208.96 = 12,374.64/x
  3. Step 3: Cross multiply
    20,441.10x = 28,208.96 × 12,374.64
  4. Step 4: Simplify right side
    20,441.10x = 349,075,724.77
  5. Step 5: Solve for x
    x = 349,075,724.77/20,441.10
  6. Step 6: Final answer
    x = 17,077.15

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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.