Home / 28,633.02-39,543.60-19,703.58

Finding the Fourth Proportional to 28,633.02, 39,543.60 and 19,703.58

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Solution

The fourth proportional to 28,633.02, 39,543.60 and 19,703.58 is: 27,211.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633.02 : 39,543.60 = 19,703.58 : x
  2. Step 2: Convert to fraction form
    28,633.02/39,543.60 = 19,703.58/x
  3. Step 3: Cross multiply
    28,633.02x = 39,543.60 × 19,703.58
  4. Step 4: Simplify right side
    28,633.02x = 779,150,486.09
  5. Step 5: Solve for x
    x = 779,150,486.09/28,633.02
  6. Step 6: Final answer
    x = 27,211.61

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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.