Home / 21,403.12-29,535.06-11,842.45

Finding the Fourth Proportional to 21,403.12, 29,535.06 and 11,842.45

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Solution

The fourth proportional to 21,403.12, 29,535.06 and 11,842.45 is: 16,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.12 : 29,535.06 = 11,842.45 : x
  2. Step 2: Convert to fraction form
    21,403.12/29,535.06 = 11,842.45/x
  3. Step 3: Cross multiply
    21,403.12x = 29,535.06 × 11,842.45
  4. Step 4: Simplify right side
    21,403.12x = 349,767,471.30
  5. Step 5: Solve for x
    x = 349,767,471.30/21,403.12
  6. Step 6: Final answer
    x = 16,341.89

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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.