Home / 20,567.88-28,383.48-12,070.08

Finding the Fourth Proportional to 20,567.88, 28,383.48 and 12,070.08

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Solution

The fourth proportional to 20,567.88, 28,383.48 and 12,070.08 is: 16,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.88 : 28,383.48 = 12,070.08 : x
  2. Step 2: Convert to fraction form
    20,567.88/28,383.48 = 12,070.08/x
  3. Step 3: Cross multiply
    20,567.88x = 28,383.48 × 12,070.08
  4. Step 4: Simplify right side
    20,567.88x = 342,590,874.28
  5. Step 5: Solve for x
    x = 342,590,874.28/20,567.88
  6. Step 6: Final answer
    x = 16,656.60

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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.