Home / 20,548.80-28,359-11,598.48

Finding the Fourth Proportional to 20,548.80, 28,359 and 11,598.48

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Solution

The fourth proportional to 20,548.80, 28,359 and 11,598.48 is: 16,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.80 : 28,359 = 11,598.48 : x
  2. Step 2: Convert to fraction form
    20,548.80/28,359 = 11,598.48/x
  3. Step 3: Cross multiply
    20,548.80x = 28,359 × 11,598.48
  4. Step 4: Simplify right side
    20,548.80x = 328,921,294.32
  5. Step 5: Solve for x
    x = 328,921,294.32/20,548.80
  6. Step 6: Final answer
    x = 16,006.84

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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.