Home / 14,645.40-21,969.70-14,184.60

Finding the Fourth Proportional to 14,645.40, 21,969.70 and 14,184.60

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Solution

The fourth proportional to 14,645.40, 21,969.70 and 14,184.60 is: 21,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.40 : 21,969.70 = 14,184.60 : x
  2. Step 2: Convert to fraction form
    14,645.40/21,969.70 = 14,184.60/x
  3. Step 3: Cross multiply
    14,645.40x = 21,969.70 × 14,184.60
  4. Step 4: Simplify right side
    14,645.40x = 311,631,406.62
  5. Step 5: Solve for x
    x = 311,631,406.62/14,645.40
  6. Step 6: Final answer
    x = 21,278.45

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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.