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Finding the Fourth Proportional to 39,084, 53,980.47 and 26,486.88

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Solution

The fourth proportional to 39,084, 53,980.47 and 26,486.88 is: 36,582.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,084 : 53,980.47 = 26,486.88 : x
  2. Step 2: Convert to fraction form
    39,084/53,980.47 = 26,486.88/x
  3. Step 3: Cross multiply
    39,084x = 53,980.47 × 26,486.88
  4. Step 4: Simplify right side
    39,084x = 1,429,774,231.23
  5. Step 5: Solve for x
    x = 1,429,774,231.23/39,084
  6. Step 6: Final answer
    x = 36,582.09

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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.