Home / 21,763.22-30,001.46-15,369.89

Finding the Fourth Proportional to 21,763.22, 30,001.46 and 15,369.89

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Solution

The fourth proportional to 21,763.22, 30,001.46 and 15,369.89 is: 21,188.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,763.22 : 30,001.46 = 15,369.89 : x
  2. Step 2: Convert to fraction form
    21,763.22/30,001.46 = 15,369.89/x
  3. Step 3: Cross multiply
    21,763.22x = 30,001.46 × 15,369.89
  4. Step 4: Simplify right side
    21,763.22x = 461,118,913.18
  5. Step 5: Solve for x
    x = 461,118,913.18/21,763.22
  6. Step 6: Final answer
    x = 21,188.00

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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.