Home / 20,676.84-28,521.27-18,030.57

Finding the Fourth Proportional to 20,676.84, 28,521.27 and 18,030.57

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Solution

The fourth proportional to 20,676.84, 28,521.27 and 18,030.57 is: 24,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.84 : 28,521.27 = 18,030.57 : x
  2. Step 2: Convert to fraction form
    20,676.84/28,521.27 = 18,030.57/x
  3. Step 3: Cross multiply
    20,676.84x = 28,521.27 × 18,030.57
  4. Step 4: Simplify right side
    20,676.84x = 514,254,755.22
  5. Step 5: Solve for x
    x = 514,254,755.22/20,676.84
  6. Step 6: Final answer
    x = 24,871.05

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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.