Home / 26,870.69-40,244.54-12,840.57

Finding the Fourth Proportional to 26,870.69, 40,244.54 and 12,840.57

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Solution

The fourth proportional to 26,870.69, 40,244.54 and 12,840.57 is: 19,231.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,870.69 : 40,244.54 = 12,840.57 : x
  2. Step 2: Convert to fraction form
    26,870.69/40,244.54 = 12,840.57/x
  3. Step 3: Cross multiply
    26,870.69x = 40,244.54 × 12,840.57
  4. Step 4: Simplify right side
    26,870.69x = 516,762,768.78
  5. Step 5: Solve for x
    x = 516,762,768.78/26,870.69
  6. Step 6: Final answer
    x = 19,231.47

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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.