Home / 21,235.05-29,306.01-12,737.51

Finding the Fourth Proportional to 21,235.05, 29,306.01 and 12,737.51

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Solution

The fourth proportional to 21,235.05, 29,306.01 and 12,737.51 is: 17,578.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.05 : 29,306.01 = 12,737.51 : x
  2. Step 2: Convert to fraction form
    21,235.05/29,306.01 = 12,737.51/x
  3. Step 3: Cross multiply
    21,235.05x = 29,306.01 × 12,737.51
  4. Step 4: Simplify right side
    21,235.05x = 373,285,448.91
  5. Step 5: Solve for x
    x = 373,285,448.91/21,235.05
  6. Step 6: Final answer
    x = 17,578.74

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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.