Home / 28,693.68-43,032.60-20,349.12

Finding the Fourth Proportional to 28,693.68, 43,032.60 and 20,349.12

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Solution

The fourth proportional to 28,693.68, 43,032.60 and 20,349.12 is: 30,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693.68 : 43,032.60 = 20,349.12 : x
  2. Step 2: Convert to fraction form
    28,693.68/43,032.60 = 20,349.12/x
  3. Step 3: Cross multiply
    28,693.68x = 43,032.60 × 20,349.12
  4. Step 4: Simplify right side
    28,693.68x = 875,675,541.31
  5. Step 5: Solve for x
    x = 875,675,541.31/28,693.68
  6. Step 6: Final answer
    x = 30,518.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.