Home / 20,548.89-28,357.47-11,598.28

Finding the Fourth Proportional to 20,548.89, 28,357.47 and 11,598.28

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Solution

The fourth proportional to 20,548.89, 28,357.47 and 11,598.28 is: 16,005.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.89 : 28,357.47 = 11,598.28 : x
  2. Step 2: Convert to fraction form
    20,548.89/28,357.47 = 11,598.28/x
  3. Step 3: Cross multiply
    20,548.89x = 28,357.47 × 11,598.28
  4. Step 4: Simplify right side
    20,548.89x = 328,897,806.26
  5. Step 5: Solve for x
    x = 328,897,806.26/20,548.89
  6. Step 6: Final answer
    x = 16,005.62

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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.