Home / 21,029.67-29,035.52-13,075.47

Finding the Fourth Proportional to 21,029.67, 29,035.52 and 13,075.47

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Solution

The fourth proportional to 21,029.67, 29,035.52 and 13,075.47 is: 18,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.67 : 29,035.52 = 13,075.47 : x
  2. Step 2: Convert to fraction form
    21,029.67/29,035.52 = 13,075.47/x
  3. Step 3: Cross multiply
    21,029.67x = 29,035.52 × 13,075.47
  4. Step 4: Simplify right side
    21,029.67x = 379,653,070.69
  5. Step 5: Solve for x
    x = 379,653,070.69/21,029.67
  6. Step 6: Final answer
    x = 18,053.21

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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.