Home / 15,209.93-21,004.07-14,381.61

Finding the Fourth Proportional to 15,209.93, 21,004.07 and 14,381.61

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Solution

The fourth proportional to 15,209.93, 21,004.07 and 14,381.61 is: 19,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,209.93 : 21,004.07 = 14,381.61 : x
  2. Step 2: Convert to fraction form
    15,209.93/21,004.07 = 14,381.61/x
  3. Step 3: Cross multiply
    15,209.93x = 21,004.07 × 14,381.61
  4. Step 4: Simplify right side
    15,209.93x = 302,072,343.15
  5. Step 5: Solve for x
    x = 302,072,343.15/15,209.93
  6. Step 6: Final answer
    x = 19,860.21

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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.