Home / 16,972.64-23,416.80-13,823.36

Finding the Fourth Proportional to 16,972.64, 23,416.80 and 13,823.36

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Solution

The fourth proportional to 16,972.64, 23,416.80 and 13,823.36 is: 19,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.64 : 23,416.80 = 13,823.36 : x
  2. Step 2: Convert to fraction form
    16,972.64/23,416.80 = 13,823.36/x
  3. Step 3: Cross multiply
    16,972.64x = 23,416.80 × 13,823.36
  4. Step 4: Simplify right side
    16,972.64x = 323,698,856.45
  5. Step 5: Solve for x
    x = 323,698,856.45/16,972.64
  6. Step 6: Final answer
    x = 19,071.80

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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.