Home / 28,670.90-43,009.06-11,142.08

Finding the Fourth Proportional to 28,670.90, 43,009.06 and 11,142.08

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Solution

The fourth proportional to 28,670.90, 43,009.06 and 11,142.08 is: 16,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,670.90 : 43,009.06 = 11,142.08 : x
  2. Step 2: Convert to fraction form
    28,670.90/43,009.06 = 11,142.08/x
  3. Step 3: Cross multiply
    28,670.90x = 43,009.06 × 11,142.08
  4. Step 4: Simplify right side
    28,670.90x = 479,210,387.24
  5. Step 5: Solve for x
    x = 479,210,387.24/28,670.90
  6. Step 6: Final answer
    x = 16,714.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.