Home / 19,931.09-29,900.73-16,666.98

Finding the Fourth Proportional to 19,931.09, 29,900.73 and 16,666.98

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Solution

The fourth proportional to 19,931.09, 29,900.73 and 16,666.98 is: 25,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.09 : 29,900.73 = 16,666.98 : x
  2. Step 2: Convert to fraction form
    19,931.09/29,900.73 = 16,666.98/x
  3. Step 3: Cross multiply
    19,931.09x = 29,900.73 × 16,666.98
  4. Step 4: Simplify right side
    19,931.09x = 498,354,868.90
  5. Step 5: Solve for x
    x = 498,354,868.90/19,931.09
  6. Step 6: Final answer
    x = 25,003.90

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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.