Home / 30,455.06-45,648.66-12,675.92

Finding the Fourth Proportional to 30,455.06, 45,648.66 and 12,675.92

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Solution

The fourth proportional to 30,455.06, 45,648.66 and 12,675.92 is: 18,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.06 : 45,648.66 = 12,675.92 : x
  2. Step 2: Convert to fraction form
    30,455.06/45,648.66 = 12,675.92/x
  3. Step 3: Cross multiply
    30,455.06x = 45,648.66 × 12,675.92
  4. Step 4: Simplify right side
    30,455.06x = 578,638,762.27
  5. Step 5: Solve for x
    x = 578,638,762.27/30,455.06
  6. Step 6: Final answer
    x = 18,999.76

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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.