Home / 30,211.04-45,323.03-12,670.76

Finding the Fourth Proportional to 30,211.04, 45,323.03 and 12,670.76

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Solution

The fourth proportional to 30,211.04, 45,323.03 and 12,670.76 is: 19,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.04 : 45,323.03 = 12,670.76 : x
  2. Step 2: Convert to fraction form
    30,211.04/45,323.03 = 12,670.76/x
  3. Step 3: Cross multiply
    30,211.04x = 45,323.03 × 12,670.76
  4. Step 4: Simplify right side
    30,211.04x = 574,277,040.66
  5. Step 5: Solve for x
    x = 574,277,040.66/30,211.04
  6. Step 6: Final answer
    x = 19,008.85

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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.