Home / 21,460.56-29,614.65-11,900.40

Finding the Fourth Proportional to 21,460.56, 29,614.65 and 11,900.40

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Solution

The fourth proportional to 21,460.56, 29,614.65 and 11,900.40 is: 16,422.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,460.56 : 29,614.65 = 11,900.40 : x
  2. Step 2: Convert to fraction form
    21,460.56/29,614.65 = 11,900.40/x
  3. Step 3: Cross multiply
    21,460.56x = 29,614.65 × 11,900.40
  4. Step 4: Simplify right side
    21,460.56x = 352,426,180.86
  5. Step 5: Solve for x
    x = 352,426,180.86/21,460.56
  6. Step 6: Final answer
    x = 16,422.04

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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.