Home / 38,017.78-52,464.45-20,790.16

Finding the Fourth Proportional to 38,017.78, 52,464.45 and 20,790.16

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Solution

The fourth proportional to 38,017.78, 52,464.45 and 20,790.16 is: 28,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,017.78 : 52,464.45 = 20,790.16 : x
  2. Step 2: Convert to fraction form
    38,017.78/52,464.45 = 20,790.16/x
  3. Step 3: Cross multiply
    38,017.78x = 52,464.45 × 20,790.16
  4. Step 4: Simplify right side
    38,017.78x = 1,090,744,309.81
  5. Step 5: Solve for x
    x = 1,090,744,309.81/38,017.78
  6. Step 6: Final answer
    x = 28,690.37

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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.