Home / 21,548.65-29,737.85-13,052.36

Finding the Fourth Proportional to 21,548.65, 29,737.85 and 13,052.36

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Solution

The fourth proportional to 21,548.65, 29,737.85 and 13,052.36 is: 18,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.65 : 29,737.85 = 13,052.36 : x
  2. Step 2: Convert to fraction form
    21,548.65/29,737.85 = 13,052.36/x
  3. Step 3: Cross multiply
    21,548.65x = 29,737.85 × 13,052.36
  4. Step 4: Simplify right side
    21,548.65x = 388,148,909.87
  5. Step 5: Solve for x
    x = 388,148,909.87/21,548.65
  6. Step 6: Final answer
    x = 18,012.68

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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.