Home / 20,051.29-30,076.95-12,666.97

Finding the Fourth Proportional to 20,051.29, 30,076.95 and 12,666.97

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Solution

The fourth proportional to 20,051.29, 30,076.95 and 12,666.97 is: 19,000.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.29 : 30,076.95 = 12,666.97 : x
  2. Step 2: Convert to fraction form
    20,051.29/30,076.95 = 12,666.97/x
  3. Step 3: Cross multiply
    20,051.29x = 30,076.95 × 12,666.97
  4. Step 4: Simplify right side
    20,051.29x = 380,983,823.34
  5. Step 5: Solve for x
    x = 380,983,823.34/20,051.29
  6. Step 6: Final answer
    x = 19,000.46

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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.