Home / 39,573.40-54,611.55-21,670.06

Finding the Fourth Proportional to 39,573.40, 54,611.55 and 21,670.06

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Solution

The fourth proportional to 39,573.40, 54,611.55 and 21,670.06 is: 29,904.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,573.40 : 54,611.55 = 21,670.06 : x
  2. Step 2: Convert to fraction form
    39,573.40/54,611.55 = 21,670.06/x
  3. Step 3: Cross multiply
    39,573.40x = 54,611.55 × 21,670.06
  4. Step 4: Simplify right side
    39,573.40x = 1,183,435,565.19
  5. Step 5: Solve for x
    x = 1,183,435,565.19/39,573.40
  6. Step 6: Final answer
    x = 29,904.82

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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.