Home / 15,356.34-21,140.55-14,651.04

Finding the Fourth Proportional to 15,356.34, 21,140.55 and 14,651.04

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Solution

The fourth proportional to 15,356.34, 21,140.55 and 14,651.04 is: 20,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356.34 : 21,140.55 = 14,651.04 : x
  2. Step 2: Convert to fraction form
    15,356.34/21,140.55 = 14,651.04/x
  3. Step 3: Cross multiply
    15,356.34x = 21,140.55 × 14,651.04
  4. Step 4: Simplify right side
    15,356.34x = 309,731,043.67
  5. Step 5: Solve for x
    x = 309,731,043.67/15,356.34
  6. Step 6: Final answer
    x = 20,169.59

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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.