Home / 20,574.10-28,393.23-12,076.59

Finding the Fourth Proportional to 20,574.10, 28,393.23 and 12,076.59

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Solution

The fourth proportional to 20,574.10, 28,393.23 and 12,076.59 is: 16,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.10 : 28,393.23 = 12,076.59 : x
  2. Step 2: Convert to fraction form
    20,574.10/28,393.23 = 12,076.59/x
  3. Step 3: Cross multiply
    20,574.10x = 28,393.23 × 12,076.59
  4. Step 4: Simplify right side
    20,574.10x = 342,893,549.25
  5. Step 5: Solve for x
    x = 342,893,549.25/20,574.10
  6. Step 6: Final answer
    x = 16,666.27

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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.