Home / 19,999.36-30,002.34-8,313.40

Finding the Fourth Proportional to 19,999.36, 30,002.34 and 8,313.40

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Solution

The fourth proportional to 19,999.36, 30,002.34 and 8,313.40 is: 12,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.36 : 30,002.34 = 8,313.40 : x
  2. Step 2: Convert to fraction form
    19,999.36/30,002.34 = 8,313.40/x
  3. Step 3: Cross multiply
    19,999.36x = 30,002.34 × 8,313.40
  4. Step 4: Simplify right side
    19,999.36x = 249,421,453.36
  5. Step 5: Solve for x
    x = 249,421,453.36/19,999.36
  6. Step 6: Final answer
    x = 12,471.47

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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.