Home / 30,303.80-45,417.90-15,518.60

Finding the Fourth Proportional to 30,303.80, 45,417.90 and 15,518.60

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Solution

The fourth proportional to 30,303.80, 45,417.90 and 15,518.60 is: 23,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,303.80 : 45,417.90 = 15,518.60 : x
  2. Step 2: Convert to fraction form
    30,303.80/45,417.90 = 15,518.60/x
  3. Step 3: Cross multiply
    30,303.80x = 45,417.90 × 15,518.60
  4. Step 4: Simplify right side
    30,303.80x = 704,822,222.94
  5. Step 5: Solve for x
    x = 704,822,222.94/30,303.80
  6. Step 6: Final answer
    x = 23,258.54

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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.