Home / 22,440.78-30,970.05-12,371.01

Finding the Fourth Proportional to 22,440.78, 30,970.05 and 12,371.01

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Solution

The fourth proportional to 22,440.78, 30,970.05 and 12,371.01 is: 17,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,440.78 : 30,970.05 = 12,371.01 : x
  2. Step 2: Convert to fraction form
    22,440.78/30,970.05 = 12,371.01/x
  3. Step 3: Cross multiply
    22,440.78x = 30,970.05 × 12,371.01
  4. Step 4: Simplify right side
    22,440.78x = 383,130,798.25
  5. Step 5: Solve for x
    x = 383,130,798.25/22,440.78
  6. Step 6: Final answer
    x = 17,072.97

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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.