Home / 38,400.03-52,992.28-21,405.35

Finding the Fourth Proportional to 38,400.03, 52,992.28 and 21,405.35

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Solution

The fourth proportional to 38,400.03, 52,992.28 and 21,405.35 is: 29,539.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.03 : 52,992.28 = 21,405.35 : x
  2. Step 2: Convert to fraction form
    38,400.03/52,992.28 = 21,405.35/x
  3. Step 3: Cross multiply
    38,400.03x = 52,992.28 × 21,405.35
  4. Step 4: Simplify right side
    38,400.03x = 1,134,318,459.94
  5. Step 5: Solve for x
    x = 1,134,318,459.94/38,400.03
  6. Step 6: Final answer
    x = 29,539.52

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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.