Home / 20,951.93-28,945.45-15,637.52

Finding the Fourth Proportional to 20,951.93, 28,945.45 and 15,637.52

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Solution

The fourth proportional to 20,951.93, 28,945.45 and 15,637.52 is: 21,603.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.93 : 28,945.45 = 15,637.52 : x
  2. Step 2: Convert to fraction form
    20,951.93/28,945.45 = 15,637.52/x
  3. Step 3: Cross multiply
    20,951.93x = 28,945.45 × 15,637.52
  4. Step 4: Simplify right side
    20,951.93x = 452,635,145.19
  5. Step 5: Solve for x
    x = 452,635,145.19/20,951.93
  6. Step 6: Final answer
    x = 21,603.50

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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.