Home / 21,038.22-29,032.61-11,606.76

Finding the Fourth Proportional to 21,038.22, 29,032.61 and 11,606.76

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Solution

The fourth proportional to 21,038.22, 29,032.61 and 11,606.76 is: 16,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.22 : 29,032.61 = 11,606.76 : x
  2. Step 2: Convert to fraction form
    21,038.22/29,032.61 = 11,606.76/x
  3. Step 3: Cross multiply
    21,038.22x = 29,032.61 × 11,606.76
  4. Step 4: Simplify right side
    21,038.22x = 336,974,478.41
  5. Step 5: Solve for x
    x = 336,974,478.41/21,038.22
  6. Step 6: Final answer
    x = 16,017.25

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Half scale
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Double scale
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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.