Home / 21,373.71-29,495.70-11,814.32

Finding the Fourth Proportional to 21,373.71, 29,495.70 and 11,814.32

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Solution

The fourth proportional to 21,373.71, 29,495.70 and 11,814.32 is: 16,303.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.71 : 29,495.70 = 11,814.32 : x
  2. Step 2: Convert to fraction form
    21,373.71/29,495.70 = 11,814.32/x
  3. Step 3: Cross multiply
    21,373.71x = 29,495.70 × 11,814.32
  4. Step 4: Simplify right side
    21,373.71x = 348,471,638.42
  5. Step 5: Solve for x
    x = 348,471,638.42/21,373.71
  6. Step 6: Final answer
    x = 16,303.75

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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.