Home / 20,637.51-30,927.09-10,256.55

Finding the Fourth Proportional to 20,637.51, 30,927.09 and 10,256.55

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Solution

The fourth proportional to 20,637.51, 30,927.09 and 10,256.55 is: 15,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.51 : 30,927.09 = 10,256.55 : x
  2. Step 2: Convert to fraction form
    20,637.51/30,927.09 = 10,256.55/x
  3. Step 3: Cross multiply
    20,637.51x = 30,927.09 × 10,256.55
  4. Step 4: Simplify right side
    20,637.51x = 317,205,244.94
  5. Step 5: Solve for x
    x = 317,205,244.94/20,637.51
  6. Step 6: Final answer
    x = 15,370.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.