Home / 21,342.16-31,970.58-14,662.36

Finding the Fourth Proportional to 21,342.16, 31,970.58 and 14,662.36

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Solution

The fourth proportional to 21,342.16, 31,970.58 and 14,662.36 is: 21,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.16 : 31,970.58 = 14,662.36 : x
  2. Step 2: Convert to fraction form
    21,342.16/31,970.58 = 14,662.36/x
  3. Step 3: Cross multiply
    21,342.16x = 31,970.58 × 14,662.36
  4. Step 4: Simplify right side
    21,342.16x = 468,764,153.37
  5. Step 5: Solve for x
    x = 468,764,153.37/21,342.16
  6. Step 6: Final answer
    x = 21,964.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.