Home / 21,615.90-29,841.69-14,937.48

Finding the Fourth Proportional to 21,615.90, 29,841.69 and 14,937.48

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Solution

The fourth proportional to 21,615.90, 29,841.69 and 14,937.48 is: 20,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.90 : 29,841.69 = 14,937.48 : x
  2. Step 2: Convert to fraction form
    21,615.90/29,841.69 = 14,937.48/x
  3. Step 3: Cross multiply
    21,615.90x = 29,841.69 × 14,937.48
  4. Step 4: Simplify right side
    21,615.90x = 445,759,647.54
  5. Step 5: Solve for x
    x = 445,759,647.54/21,615.90
  6. Step 6: Final answer
    x = 20,621.84

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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.