Home / 21,024.87-29,014.11-12,075.18

Finding the Fourth Proportional to 21,024.87, 29,014.11 and 12,075.18

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Solution

The fourth proportional to 21,024.87, 29,014.11 and 12,075.18 is: 16,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.87 : 29,014.11 = 12,075.18 : x
  2. Step 2: Convert to fraction form
    21,024.87/29,014.11 = 12,075.18/x
  3. Step 3: Cross multiply
    21,024.87x = 29,014.11 × 12,075.18
  4. Step 4: Simplify right side
    21,024.87x = 350,350,600.79
  5. Step 5: Solve for x
    x = 350,350,600.79/21,024.87
  6. Step 6: Final answer
    x = 16,663.63

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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.