Home / 40,699.81-61,000.50-20,967.60

Finding the Fourth Proportional to 40,699.81, 61,000.50 and 20,967.60

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Solution

The fourth proportional to 40,699.81, 61,000.50 and 20,967.60 is: 31,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,699.81 : 61,000.50 = 20,967.60 : x
  2. Step 2: Convert to fraction form
    40,699.81/61,000.50 = 20,967.60/x
  3. Step 3: Cross multiply
    40,699.81x = 61,000.50 × 20,967.60
  4. Step 4: Simplify right side
    40,699.81x = 1,279,034,083.80
  5. Step 5: Solve for x
    x = 1,279,034,083.80/40,699.81
  6. Step 6: Final answer
    x = 31,426.05

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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.