Home / 38,651.33-53,337.87-21,656.28

Finding the Fourth Proportional to 38,651.33, 53,337.87 and 21,656.28

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Solution

The fourth proportional to 38,651.33, 53,337.87 and 21,656.28 is: 29,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,651.33 : 53,337.87 = 21,656.28 : x
  2. Step 2: Convert to fraction form
    38,651.33/53,337.87 = 21,656.28/x
  3. Step 3: Cross multiply
    38,651.33x = 53,337.87 × 21,656.28
  4. Step 4: Simplify right side
    38,651.33x = 1,155,099,847.32
  5. Step 5: Solve for x
    x = 1,155,099,847.32/38,651.33
  6. Step 6: Final answer
    x = 29,885.13

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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.