Home / 19,712.10-27,155.08-16,870.36

Finding the Fourth Proportional to 19,712.10, 27,155.08 and 16,870.36

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Solution

The fourth proportional to 19,712.10, 27,155.08 and 16,870.36 is: 23,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,712.10 : 27,155.08 = 16,870.36 : x
  2. Step 2: Convert to fraction form
    19,712.10/27,155.08 = 16,870.36/x
  3. Step 3: Cross multiply
    19,712.10x = 27,155.08 × 16,870.36
  4. Step 4: Simplify right side
    19,712.10x = 458,115,975.43
  5. Step 5: Solve for x
    x = 458,115,975.43/19,712.10
  6. Step 6: Final answer
    x = 23,240.34

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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.