Home / 30,521.34-45,783.36-12,749.94

Finding the Fourth Proportional to 30,521.34, 45,783.36 and 12,749.94

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Solution

The fourth proportional to 30,521.34, 45,783.36 and 12,749.94 is: 19,125.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.34 : 45,783.36 = 12,749.94 : x
  2. Step 2: Convert to fraction form
    30,521.34/45,783.36 = 12,749.94/x
  3. Step 3: Cross multiply
    30,521.34x = 45,783.36 × 12,749.94
  4. Step 4: Simplify right side
    30,521.34x = 583,735,093.00
  5. Step 5: Solve for x
    x = 583,735,093.00/30,521.34
  6. Step 6: Final answer
    x = 19,125.47

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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.