Home / 21,038.19-29,032.16-11,606.55

Finding the Fourth Proportional to 21,038.19, 29,032.16 and 11,606.55

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Solution

The fourth proportional to 21,038.19, 29,032.16 and 11,606.55 is: 16,016.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.19 : 29,032.16 = 11,606.55 : x
  2. Step 2: Convert to fraction form
    21,038.19/29,032.16 = 11,606.55/x
  3. Step 3: Cross multiply
    21,038.19x = 29,032.16 × 11,606.55
  4. Step 4: Simplify right side
    21,038.19x = 336,963,158.62
  5. Step 5: Solve for x
    x = 336,963,158.62/21,038.19
  6. Step 6: Final answer
    x = 16,016.74

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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.