Home / 26,478.09-36,538.63-15,873.57

Finding the Fourth Proportional to 26,478.09, 36,538.63 and 15,873.57

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Solution

The fourth proportional to 26,478.09, 36,538.63 and 15,873.57 is: 21,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.09 : 36,538.63 = 15,873.57 : x
  2. Step 2: Convert to fraction form
    26,478.09/36,538.63 = 15,873.57/x
  3. Step 3: Cross multiply
    26,478.09x = 36,538.63 × 15,873.57
  4. Step 4: Simplify right side
    26,478.09x = 579,998,461.33
  5. Step 5: Solve for x
    x = 579,998,461.33/26,478.09
  6. Step 6: Final answer
    x = 21,904.85

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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.