Home / 17,775.36-24,574.32-15,559.20

Finding the Fourth Proportional to 17,775.36, 24,574.32 and 15,559.20

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Solution

The fourth proportional to 17,775.36, 24,574.32 and 15,559.20 is: 21,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.36 : 24,574.32 = 15,559.20 : x
  2. Step 2: Convert to fraction form
    17,775.36/24,574.32 = 15,559.20/x
  3. Step 3: Cross multiply
    17,775.36x = 24,574.32 × 15,559.20
  4. Step 4: Simplify right side
    17,775.36x = 382,356,759.74
  5. Step 5: Solve for x
    x = 382,356,759.74/17,775.36
  6. Step 6: Final answer
    x = 21,510.49

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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.