Home / 21,997.74-30,316.18-15,624.62

Finding the Fourth Proportional to 21,997.74, 30,316.18 and 15,624.62

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Solution

The fourth proportional to 21,997.74, 30,316.18 and 15,624.62 is: 21,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.74 : 30,316.18 = 15,624.62 : x
  2. Step 2: Convert to fraction form
    21,997.74/30,316.18 = 15,624.62/x
  3. Step 3: Cross multiply
    21,997.74x = 30,316.18 × 15,624.62
  4. Step 4: Simplify right side
    21,997.74x = 473,678,792.35
  5. Step 5: Solve for x
    x = 473,678,792.35/21,997.74
  6. Step 6: Final answer
    x = 21,533.07

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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.