Home / 39,281.58-54,208.48-21,376.58

Finding the Fourth Proportional to 39,281.58, 54,208.48 and 21,376.58

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Solution

The fourth proportional to 39,281.58, 54,208.48 and 21,376.58 is: 29,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281.58 : 54,208.48 = 21,376.58 : x
  2. Step 2: Convert to fraction form
    39,281.58/54,208.48 = 21,376.58/x
  3. Step 3: Cross multiply
    39,281.58x = 54,208.48 × 21,376.58
  4. Step 4: Simplify right side
    39,281.58x = 1,158,791,855.96
  5. Step 5: Solve for x
    x = 1,158,791,855.96/39,281.58
  6. Step 6: Final answer
    x = 29,499.62

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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.