Home / 19,989.10-29,857.79-14,677.12

Finding the Fourth Proportional to 19,989.10, 29,857.79 and 14,677.12

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Solution

The fourth proportional to 19,989.10, 29,857.79 and 14,677.12 is: 21,923.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.10 : 29,857.79 = 14,677.12 : x
  2. Step 2: Convert to fraction form
    19,989.10/29,857.79 = 14,677.12/x
  3. Step 3: Cross multiply
    19,989.10x = 29,857.79 × 14,677.12
  4. Step 4: Simplify right side
    19,989.10x = 438,226,328.81
  5. Step 5: Solve for x
    x = 438,226,328.81/19,989.10
  6. Step 6: Final answer
    x = 21,923.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.