Home / 40,889.36-61,334.03-12,809.64

Finding the Fourth Proportional to 40,889.36, 61,334.03 and 12,809.64

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Solution

The fourth proportional to 40,889.36, 61,334.03 and 12,809.64 is: 19,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,889.36 : 61,334.03 = 12,809.64 : x
  2. Step 2: Convert to fraction form
    40,889.36/61,334.03 = 12,809.64/x
  3. Step 3: Cross multiply
    40,889.36x = 61,334.03 × 12,809.64
  4. Step 4: Simplify right side
    40,889.36x = 785,666,780.00
  5. Step 5: Solve for x
    x = 785,666,780.00/40,889.36
  6. Step 6: Final answer
    x = 19,214.46

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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.