Home / 19,880.24-27,418.74-17,485.16

Finding the Fourth Proportional to 19,880.24, 27,418.74 and 17,485.16

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Solution

The fourth proportional to 19,880.24, 27,418.74 and 17,485.16 is: 24,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.24 : 27,418.74 = 17,485.16 : x
  2. Step 2: Convert to fraction form
    19,880.24/27,418.74 = 17,485.16/x
  3. Step 3: Cross multiply
    19,880.24x = 27,418.74 × 17,485.16
  4. Step 4: Simplify right side
    19,880.24x = 479,421,055.90
  5. Step 5: Solve for x
    x = 479,421,055.90/19,880.24
  6. Step 6: Final answer
    x = 24,115.46

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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.