Home / 24,987.78-34,424.60-17,420.36

Finding the Fourth Proportional to 24,987.78, 34,424.60 and 17,420.36

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Solution

The fourth proportional to 24,987.78, 34,424.60 and 17,420.36 is: 23,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,987.78 : 34,424.60 = 17,420.36 : x
  2. Step 2: Convert to fraction form
    24,987.78/34,424.60 = 17,420.36/x
  3. Step 3: Cross multiply
    24,987.78x = 34,424.60 × 17,420.36
  4. Step 4: Simplify right side
    24,987.78x = 599,688,665.63
  5. Step 5: Solve for x
    x = 599,688,665.63/24,987.78
  6. Step 6: Final answer
    x = 23,999.28

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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.