Home / 19,329.56-26,728.47-15,343.75

Finding the Fourth Proportional to 19,329.56, 26,728.47 and 15,343.75

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Solution

The fourth proportional to 19,329.56, 26,728.47 and 15,343.75 is: 21,216.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,329.56 : 26,728.47 = 15,343.75 : x
  2. Step 2: Convert to fraction form
    19,329.56/26,728.47 = 15,343.75/x
  3. Step 3: Cross multiply
    19,329.56x = 26,728.47 × 15,343.75
  4. Step 4: Simplify right side
    19,329.56x = 410,114,894.74
  5. Step 5: Solve for x
    x = 410,114,894.74/19,329.56
  6. Step 6: Final answer
    x = 21,216.99

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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.