Home / 19,923.40-29,885.10-13,313.80

Finding the Fourth Proportional to 19,923.40, 29,885.10 and 13,313.80

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Solution

The fourth proportional to 19,923.40, 29,885.10 and 13,313.80 is: 19,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,923.40 : 29,885.10 = 13,313.80 : x
  2. Step 2: Convert to fraction form
    19,923.40/29,885.10 = 13,313.80/x
  3. Step 3: Cross multiply
    19,923.40x = 29,885.10 × 13,313.80
  4. Step 4: Simplify right side
    19,923.40x = 397,884,244.38
  5. Step 5: Solve for x
    x = 397,884,244.38/19,923.40
  6. Step 6: Final answer
    x = 19,970.70

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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.