Home / 28,702.08-43,052.80-20,233.72

Finding the Fourth Proportional to 28,702.08, 43,052.80 and 20,233.72

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Solution

The fourth proportional to 28,702.08, 43,052.80 and 20,233.72 is: 30,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.08 : 43,052.80 = 20,233.72 : x
  2. Step 2: Convert to fraction form
    28,702.08/43,052.80 = 20,233.72/x
  3. Step 3: Cross multiply
    28,702.08x = 43,052.80 × 20,233.72
  4. Step 4: Simplify right side
    28,702.08x = 871,118,300.42
  5. Step 5: Solve for x
    x = 871,118,300.42/28,702.08
  6. Step 6: Final answer
    x = 30,350.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.