Home / 38,941.74-53,739.62-21,036.75

Finding the Fourth Proportional to 38,941.74, 53,739.62 and 21,036.75

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Solution

The fourth proportional to 38,941.74, 53,739.62 and 21,036.75 is: 29,030.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,941.74 : 53,739.62 = 21,036.75 : x
  2. Step 2: Convert to fraction form
    38,941.74/53,739.62 = 21,036.75/x
  3. Step 3: Cross multiply
    38,941.74x = 53,739.62 × 21,036.75
  4. Step 4: Simplify right side
    38,941.74x = 1,130,506,845.85
  5. Step 5: Solve for x
    x = 1,130,506,845.85/38,941.74
  6. Step 6: Final answer
    x = 29,030.72

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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.