Home / 21,325.10-29,428.22-12,373.42

Finding the Fourth Proportional to 21,325.10, 29,428.22 and 12,373.42

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Solution

The fourth proportional to 21,325.10, 29,428.22 and 12,373.42 is: 17,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.10 : 29,428.22 = 12,373.42 : x
  2. Step 2: Convert to fraction form
    21,325.10/29,428.22 = 12,373.42/x
  3. Step 3: Cross multiply
    21,325.10x = 29,428.22 × 12,373.42
  4. Step 4: Simplify right side
    21,325.10x = 364,127,725.91
  5. Step 5: Solve for x
    x = 364,127,725.91/21,325.10
  6. Step 6: Final answer
    x = 17,075.08

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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.