Home / 27,840.12-38,397.69-17,235.60

Finding the Fourth Proportional to 27,840.12, 38,397.69 and 17,235.60

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Solution

The fourth proportional to 27,840.12, 38,397.69 and 17,235.60 is: 23,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,840.12 : 38,397.69 = 17,235.60 : x
  2. Step 2: Convert to fraction form
    27,840.12/38,397.69 = 17,235.60/x
  3. Step 3: Cross multiply
    27,840.12x = 38,397.69 × 17,235.60
  4. Step 4: Simplify right side
    27,840.12x = 661,807,225.76
  5. Step 5: Solve for x
    x = 661,807,225.76/27,840.12
  6. Step 6: Final answer
    x = 23,771.71

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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.