Home / 23,142.74-31,935.40-13,071.60

Finding the Fourth Proportional to 23,142.74, 31,935.40 and 13,071.60

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Solution

The fourth proportional to 23,142.74, 31,935.40 and 13,071.60 is: 18,037.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,142.74 : 31,935.40 = 13,071.60 : x
  2. Step 2: Convert to fraction form
    23,142.74/31,935.40 = 13,071.60/x
  3. Step 3: Cross multiply
    23,142.74x = 31,935.40 × 13,071.60
  4. Step 4: Simplify right side
    23,142.74x = 417,446,741.96
  5. Step 5: Solve for x
    x = 417,446,741.96/23,142.74
  6. Step 6: Final answer
    x = 18,037.92

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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.