Home / 21,365.60-29,484.02-11,806.29

Finding the Fourth Proportional to 21,365.60, 29,484.02 and 11,806.29

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Solution

The fourth proportional to 21,365.60, 29,484.02 and 11,806.29 is: 16,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,365.60 : 29,484.02 = 11,806.29 : x
  2. Step 2: Convert to fraction form
    21,365.60/29,484.02 = 11,806.29/x
  3. Step 3: Cross multiply
    21,365.60x = 29,484.02 × 11,806.29
  4. Step 4: Simplify right side
    21,365.60x = 348,096,920.00
  5. Step 5: Solve for x
    x = 348,096,920.00/21,365.60
  6. Step 6: Final answer
    x = 16,292.40

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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.