Home / 20,302.15-30,456.51-6,258.89

Finding the Fourth Proportional to 20,302.15, 30,456.51 and 6,258.89

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Solution

The fourth proportional to 20,302.15, 30,456.51 and 6,258.89 is: 9,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.15 : 30,456.51 = 6,258.89 : x
  2. Step 2: Convert to fraction form
    20,302.15/30,456.51 = 6,258.89/x
  3. Step 3: Cross multiply
    20,302.15x = 30,456.51 × 6,258.89
  4. Step 4: Simplify right side
    20,302.15x = 190,623,914.58
  5. Step 5: Solve for x
    x = 190,623,914.58/20,302.15
  6. Step 6: Final answer
    x = 9,389.35

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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.