Home / 30,180.08-45,271.20-9,405.20

Finding the Fourth Proportional to 30,180.08, 45,271.20 and 9,405.20

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Solution

The fourth proportional to 30,180.08, 45,271.20 and 9,405.20 is: 14,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.08 : 45,271.20 = 9,405.20 : x
  2. Step 2: Convert to fraction form
    30,180.08/45,271.20 = 9,405.20/x
  3. Step 3: Cross multiply
    30,180.08x = 45,271.20 × 9,405.20
  4. Step 4: Simplify right side
    30,180.08x = 425,784,690.24
  5. Step 5: Solve for x
    x = 425,784,690.24/30,180.08
  6. Step 6: Final answer
    x = 14,108.14

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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.