Home / 15,272.84-20,918.56-14,376.20

Finding the Fourth Proportional to 15,272.84, 20,918.56 and 14,376.20

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Solution

The fourth proportional to 15,272.84, 20,918.56 and 14,376.20 is: 19,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.84 : 20,918.56 = 14,376.20 : x
  2. Step 2: Convert to fraction form
    15,272.84/20,918.56 = 14,376.20/x
  3. Step 3: Cross multiply
    15,272.84x = 20,918.56 × 14,376.20
  4. Step 4: Simplify right side
    15,272.84x = 300,729,402.27
  5. Step 5: Solve for x
    x = 300,729,402.27/15,272.84
  6. Step 6: Final answer
    x = 19,690.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.