Home / 20,766.16-28,656.75-19,094.32

Finding the Fourth Proportional to 20,766.16, 28,656.75 and 19,094.32

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Solution

The fourth proportional to 20,766.16, 28,656.75 and 19,094.32 is: 26,349.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.16 : 28,656.75 = 19,094.32 : x
  2. Step 2: Convert to fraction form
    20,766.16/28,656.75 = 19,094.32/x
  3. Step 3: Cross multiply
    20,766.16x = 28,656.75 × 19,094.32
  4. Step 4: Simplify right side
    20,766.16x = 547,181,154.66
  5. Step 5: Solve for x
    x = 547,181,154.66/20,766.16
  6. Step 6: Final answer
    x = 26,349.66

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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.