Home / 28,664.64-42,962.40-13,060.80

Finding the Fourth Proportional to 28,664.64, 42,962.40 and 13,060.80

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Solution

The fourth proportional to 28,664.64, 42,962.40 and 13,060.80 is: 19,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.64 : 42,962.40 = 13,060.80 : x
  2. Step 2: Convert to fraction form
    28,664.64/42,962.40 = 13,060.80/x
  3. Step 3: Cross multiply
    28,664.64x = 42,962.40 × 13,060.80
  4. Step 4: Simplify right side
    28,664.64x = 561,123,313.92
  5. Step 5: Solve for x
    x = 561,123,313.92/28,664.64
  6. Step 6: Final answer
    x = 19,575.45

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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.