Home / 20,609.03-28,444.72-11,656.91

Finding the Fourth Proportional to 20,609.03, 28,444.72 and 11,656.91

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Solution

The fourth proportional to 20,609.03, 28,444.72 and 11,656.91 is: 16,088.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.03 : 28,444.72 = 11,656.91 : x
  2. Step 2: Convert to fraction form
    20,609.03/28,444.72 = 11,656.91/x
  3. Step 3: Cross multiply
    20,609.03x = 28,444.72 × 11,656.91
  4. Step 4: Simplify right side
    20,609.03x = 331,577,541.02
  5. Step 5: Solve for x
    x = 331,577,541.02/20,609.03
  6. Step 6: Final answer
    x = 16,088.94

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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.