Home / 20,683.06-28,547.73-13,226.74

Finding the Fourth Proportional to 20,683.06, 28,547.73 and 13,226.74

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Solution

The fourth proportional to 20,683.06, 28,547.73 and 13,226.74 is: 18,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.06 : 28,547.73 = 13,226.74 : x
  2. Step 2: Convert to fraction form
    20,683.06/28,547.73 = 13,226.74/x
  3. Step 3: Cross multiply
    20,683.06x = 28,547.73 × 13,226.74
  4. Step 4: Simplify right side
    20,683.06x = 377,593,402.30
  5. Step 5: Solve for x
    x = 377,593,402.30/20,683.06
  6. Step 6: Final answer
    x = 18,256.17

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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.