Home / 21,075.76-29,048.52-16,351.12

Finding the Fourth Proportional to 21,075.76, 29,048.52 and 16,351.12

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Solution

The fourth proportional to 21,075.76, 29,048.52 and 16,351.12 is: 22,536.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.76 : 29,048.52 = 16,351.12 : x
  2. Step 2: Convert to fraction form
    21,075.76/29,048.52 = 16,351.12/x
  3. Step 3: Cross multiply
    21,075.76x = 29,048.52 × 16,351.12
  4. Step 4: Simplify right side
    21,075.76x = 474,975,836.34
  5. Step 5: Solve for x
    x = 474,975,836.34/21,075.76
  6. Step 6: Final answer
    x = 22,536.59

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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.