Home / 30,180.90-45,271.35-9,404.40

Finding the Fourth Proportional to 30,180.90, 45,271.35 and 9,404.40

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Solution

The fourth proportional to 30,180.90, 45,271.35 and 9,404.40 is: 14,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.90 : 45,271.35 = 9,404.40 : x
  2. Step 2: Convert to fraction form
    30,180.90/45,271.35 = 9,404.40/x
  3. Step 3: Cross multiply
    30,180.90x = 45,271.35 × 9,404.40
  4. Step 4: Simplify right side
    30,180.90x = 425,749,883.94
  5. Step 5: Solve for x
    x = 425,749,883.94/30,180.90
  6. Step 6: Final answer
    x = 14,106.60

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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.