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Finding the Fourth Proportional to 26,871, 37,071.06 and 15,538.32

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Solution

The fourth proportional to 26,871, 37,071.06 and 15,538.32 is: 21,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,871 : 37,071.06 = 15,538.32 : x
  2. Step 2: Convert to fraction form
    26,871/37,071.06 = 15,538.32/x
  3. Step 3: Cross multiply
    26,871x = 37,071.06 × 15,538.32
  4. Step 4: Simplify right side
    26,871x = 576,021,993.02
  5. Step 5: Solve for x
    x = 576,021,993.02/26,871
  6. Step 6: Final answer
    x = 21,436.57

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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.