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Finding the Fourth Proportional to 21,762.07, 29,836.07 and 21,368.41

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Solution

The fourth proportional to 21,762.07, 29,836.07 and 21,368.41 is: 29,296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.07 : 29,836.07 = 21,368.41 : x
  2. Step 2: Convert to fraction form
    21,762.07/29,836.07 = 21,368.41/x
  3. Step 3: Cross multiply
    21,762.07x = 29,836.07 × 21,368.41
  4. Step 4: Simplify right side
    21,762.07x = 637,549,376.55
  5. Step 5: Solve for x
    x = 637,549,376.55/21,762.07
  6. Step 6: Final answer
    x = 29,296.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.