Home / 38,012.50-52,455.60-20,784.55

Finding the Fourth Proportional to 38,012.50, 52,455.60 and 20,784.55

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Solution

The fourth proportional to 38,012.50, 52,455.60 and 20,784.55 is: 28,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,012.50 : 52,455.60 = 20,784.55 : x
  2. Step 2: Convert to fraction form
    38,012.50/52,455.60 = 20,784.55/x
  3. Step 3: Cross multiply
    38,012.50x = 52,455.60 × 20,784.55
  4. Step 4: Simplify right side
    38,012.50x = 1,090,266,040.98
  5. Step 5: Solve for x
    x = 1,090,266,040.98/38,012.50
  6. Step 6: Final answer
    x = 28,681.78

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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.