Home / 20,985.34-28,958.67-11,552.08

Finding the Fourth Proportional to 20,985.34, 28,958.67 and 11,552.08

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Solution

The fourth proportional to 20,985.34, 28,958.67 and 11,552.08 is: 15,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985.34 : 28,958.67 = 11,552.08 : x
  2. Step 2: Convert to fraction form
    20,985.34/28,958.67 = 11,552.08/x
  3. Step 3: Cross multiply
    20,985.34x = 28,958.67 × 11,552.08
  4. Step 4: Simplify right side
    20,985.34x = 334,532,872.53
  5. Step 5: Solve for x
    x = 334,532,872.53/20,985.34
  6. Step 6: Final answer
    x = 15,941.27

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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.