Home / 38,454.08-53,066.48-20,790.08

Finding the Fourth Proportional to 38,454.08, 53,066.48 and 20,790.08

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Solution

The fourth proportional to 38,454.08, 53,066.48 and 20,790.08 is: 28,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.08 : 53,066.48 = 20,790.08 : x
  2. Step 2: Convert to fraction form
    38,454.08/53,066.48 = 20,790.08/x
  3. Step 3: Cross multiply
    38,454.08x = 53,066.48 × 20,790.08
  4. Step 4: Simplify right side
    38,454.08x = 1,103,256,364.52
  5. Step 5: Solve for x
    x = 1,103,256,364.52/38,454.08
  6. Step 6: Final answer
    x = 28,690.23

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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.