Home / 30,192.16-45,270.96-12,647.20

Finding the Fourth Proportional to 30,192.16, 45,270.96 and 12,647.20

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Solution

The fourth proportional to 30,192.16, 45,270.96 and 12,647.20 is: 18,963.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,192.16 : 45,270.96 = 12,647.20 : x
  2. Step 2: Convert to fraction form
    30,192.16/45,270.96 = 12,647.20/x
  3. Step 3: Cross multiply
    30,192.16x = 45,270.96 × 12,647.20
  4. Step 4: Simplify right side
    30,192.16x = 572,550,885.31
  5. Step 5: Solve for x
    x = 572,550,885.31/30,192.16
  6. Step 6: Final answer
    x = 18,963.56

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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.