Home / 15,429.83-23,172.98-14,128.56

Finding the Fourth Proportional to 15,429.83, 23,172.98 and 14,128.56

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Solution

The fourth proportional to 15,429.83, 23,172.98 and 14,128.56 is: 21,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429.83 : 23,172.98 = 14,128.56 : x
  2. Step 2: Convert to fraction form
    15,429.83/23,172.98 = 14,128.56/x
  3. Step 3: Cross multiply
    15,429.83x = 23,172.98 × 14,128.56
  4. Step 4: Simplify right side
    15,429.83x = 327,400,767.67
  5. Step 5: Solve for x
    x = 327,400,767.67/15,429.83
  6. Step 6: Final answer
    x = 21,218.70

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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.