Home / 21,590.55-29,795.63-11,901.02

Finding the Fourth Proportional to 21,590.55, 29,795.63 and 11,901.02

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Solution

The fourth proportional to 21,590.55, 29,795.63 and 11,901.02 is: 16,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.55 : 29,795.63 = 11,901.02 : x
  2. Step 2: Convert to fraction form
    21,590.55/29,795.63 = 11,901.02/x
  3. Step 3: Cross multiply
    21,590.55x = 29,795.63 × 11,901.02
  4. Step 4: Simplify right side
    21,590.55x = 354,598,180.06
  5. Step 5: Solve for x
    x = 354,598,180.06/21,590.55
  6. Step 6: Final answer
    x = 16,423.77

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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.