Home / 15,723.04-21,584.08-15,575.36

Finding the Fourth Proportional to 15,723.04, 21,584.08 and 15,575.36

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Solution

The fourth proportional to 15,723.04, 21,584.08 and 15,575.36 is: 21,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.04 : 21,584.08 = 15,575.36 : x
  2. Step 2: Convert to fraction form
    15,723.04/21,584.08 = 15,575.36/x
  3. Step 3: Cross multiply
    15,723.04x = 21,584.08 × 15,575.36
  4. Step 4: Simplify right side
    15,723.04x = 336,179,816.27
  5. Step 5: Solve for x
    x = 336,179,816.27/15,723.04
  6. Step 6: Final answer
    x = 21,381.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.