Home / 20,603.07-31,059.02-19,229.86

Finding the Fourth Proportional to 20,603.07, 31,059.02 and 19,229.86

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Solution

The fourth proportional to 20,603.07, 31,059.02 and 19,229.86 is: 28,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.07 : 31,059.02 = 19,229.86 : x
  2. Step 2: Convert to fraction form
    20,603.07/31,059.02 = 19,229.86/x
  3. Step 3: Cross multiply
    20,603.07x = 31,059.02 × 19,229.86
  4. Step 4: Simplify right side
    20,603.07x = 597,260,518.53
  5. Step 5: Solve for x
    x = 597,260,518.53/20,603.07
  6. Step 6: Final answer
    x = 28,988.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.