Home / 42,905.36-64,348.32-15,203.36

Finding the Fourth Proportional to 42,905.36, 64,348.32 and 15,203.36

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Solution

The fourth proportional to 42,905.36, 64,348.32 and 15,203.36 is: 22,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,905.36 : 64,348.32 = 15,203.36 : x
  2. Step 2: Convert to fraction form
    42,905.36/64,348.32 = 15,203.36/x
  3. Step 3: Cross multiply
    42,905.36x = 64,348.32 × 15,203.36
  4. Step 4: Simplify right side
    42,905.36x = 978,310,674.36
  5. Step 5: Solve for x
    x = 978,310,674.36/42,905.36
  6. Step 6: Final answer
    x = 22,801.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.