Home / 28,098.51-38,779.83-16,161.63

Finding the Fourth Proportional to 28,098.51, 38,779.83 and 16,161.63

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Solution

The fourth proportional to 28,098.51, 38,779.83 and 16,161.63 is: 22,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.51 : 38,779.83 = 16,161.63 : x
  2. Step 2: Convert to fraction form
    28,098.51/38,779.83 = 16,161.63/x
  3. Step 3: Cross multiply
    28,098.51x = 38,779.83 × 16,161.63
  4. Step 4: Simplify right side
    28,098.51x = 626,745,263.92
  5. Step 5: Solve for x
    x = 626,745,263.92/28,098.51
  6. Step 6: Final answer
    x = 22,305.28

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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.