Home / 26,806.99-36,995.31-15,478.57

Finding the Fourth Proportional to 26,806.99, 36,995.31 and 15,478.57

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Solution

The fourth proportional to 26,806.99, 36,995.31 and 15,478.57 is: 21,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,806.99 : 36,995.31 = 15,478.57 : x
  2. Step 2: Convert to fraction form
    26,806.99/36,995.31 = 15,478.57/x
  3. Step 3: Cross multiply
    26,806.99x = 36,995.31 × 15,478.57
  4. Step 4: Simplify right side
    26,806.99x = 572,634,495.51
  5. Step 5: Solve for x
    x = 572,634,495.51/26,806.99
  6. Step 6: Final answer
    x = 21,361.39

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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.