Home / 21,036.71-29,030.69-11,605.25

Finding the Fourth Proportional to 21,036.71, 29,030.69 and 11,605.25

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Solution

The fourth proportional to 21,036.71, 29,030.69 and 11,605.25 is: 16,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.71 : 29,030.69 = 11,605.25 : x
  2. Step 2: Convert to fraction form
    21,036.71/29,030.69 = 11,605.25/x
  3. Step 3: Cross multiply
    21,036.71x = 29,030.69 × 11,605.25
  4. Step 4: Simplify right side
    21,036.71x = 336,908,415.12
  5. Step 5: Solve for x
    x = 336,908,415.12/21,036.71
  6. Step 6: Final answer
    x = 16,015.26

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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.