Home / 28,558.35-39,368.61-20,034.63

Finding the Fourth Proportional to 28,558.35, 39,368.61 and 20,034.63

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Solution

The fourth proportional to 28,558.35, 39,368.61 and 20,034.63 is: 27,618.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.35 : 39,368.61 = 20,034.63 : x
  2. Step 2: Convert to fraction form
    28,558.35/39,368.61 = 20,034.63/x
  3. Step 3: Cross multiply
    28,558.35x = 39,368.61 × 20,034.63
  4. Step 4: Simplify right side
    28,558.35x = 788,735,534.96
  5. Step 5: Solve for x
    x = 788,735,534.96/28,558.35
  6. Step 6: Final answer
    x = 27,618.39

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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.