Home / 30,276.06-45,430.83-12,745.50

Finding the Fourth Proportional to 30,276.06, 45,430.83 and 12,745.50

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Solution

The fourth proportional to 30,276.06, 45,430.83 and 12,745.50 is: 19,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.06 : 45,430.83 = 12,745.50 : x
  2. Step 2: Convert to fraction form
    30,276.06/45,430.83 = 12,745.50/x
  3. Step 3: Cross multiply
    30,276.06x = 45,430.83 × 12,745.50
  4. Step 4: Simplify right side
    30,276.06x = 579,038,643.77
  5. Step 5: Solve for x
    x = 579,038,643.77/30,276.06
  6. Step 6: Final answer
    x = 19,125.30

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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.