Home / 21,548.89-32,357.36-12,822.76

Finding the Fourth Proportional to 21,548.89, 32,357.36 and 12,822.76

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Solution

The fourth proportional to 21,548.89, 32,357.36 and 12,822.76 is: 19,254.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.89 : 32,357.36 = 12,822.76 : x
  2. Step 2: Convert to fraction form
    21,548.89/32,357.36 = 12,822.76/x
  3. Step 3: Cross multiply
    21,548.89x = 32,357.36 × 12,822.76
  4. Step 4: Simplify right side
    21,548.89x = 414,910,661.51
  5. Step 5: Solve for x
    x = 414,910,661.51/21,548.89
  6. Step 6: Final answer
    x = 19,254.39

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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.