Home / 15,578.44-21,495.56-14,790.30

Finding the Fourth Proportional to 15,578.44, 21,495.56 and 14,790.30

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Solution

The fourth proportional to 15,578.44, 21,495.56 and 14,790.30 is: 20,408.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578.44 : 21,495.56 = 14,790.30 : x
  2. Step 2: Convert to fraction form
    15,578.44/21,495.56 = 14,790.30/x
  3. Step 3: Cross multiply
    15,578.44x = 21,495.56 × 14,790.30
  4. Step 4: Simplify right side
    15,578.44x = 317,925,781.07
  5. Step 5: Solve for x
    x = 317,925,781.07/15,578.44
  6. Step 6: Final answer
    x = 20,408.06

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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.