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Finding the Fourth Proportional to 37,784.40, 56,611.80 and 18,020.40

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Solution

The fourth proportional to 37,784.40, 56,611.80 and 18,020.40 is: 26,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,784.40 : 56,611.80 = 18,020.40 : x
  2. Step 2: Convert to fraction form
    37,784.40/56,611.80 = 18,020.40/x
  3. Step 3: Cross multiply
    37,784.40x = 56,611.80 × 18,020.40
  4. Step 4: Simplify right side
    37,784.40x = 1,020,167,280.72
  5. Step 5: Solve for x
    x = 1,020,167,280.72/37,784.40
  6. Step 6: Final answer
    x = 26,999.70

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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.