Home / 19,670.81-29,471.23-11,333.61

Finding the Fourth Proportional to 19,670.81, 29,471.23 and 11,333.61

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Solution

The fourth proportional to 19,670.81, 29,471.23 and 11,333.61 is: 16,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.81 : 29,471.23 = 11,333.61 : x
  2. Step 2: Convert to fraction form
    19,670.81/29,471.23 = 11,333.61/x
  3. Step 3: Cross multiply
    19,670.81x = 29,471.23 × 11,333.61
  4. Step 4: Simplify right side
    19,670.81x = 334,015,279.68
  5. Step 5: Solve for x
    x = 334,015,279.68/19,670.81
  6. Step 6: Final answer
    x = 16,980.25

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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.