Home / 28,601.72-39,426.62-20,079.93

Finding the Fourth Proportional to 28,601.72, 39,426.62 and 20,079.93

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Solution

The fourth proportional to 28,601.72, 39,426.62 and 20,079.93 is: 27,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.72 : 39,426.62 = 20,079.93 : x
  2. Step 2: Convert to fraction form
    28,601.72/39,426.62 = 20,079.93/x
  3. Step 3: Cross multiply
    28,601.72x = 39,426.62 × 20,079.93
  4. Step 4: Simplify right side
    28,601.72x = 791,683,818.10
  5. Step 5: Solve for x
    x = 791,683,818.10/28,601.72
  6. Step 6: Final answer
    x = 27,679.59

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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.