Home / 30,197.16-45,278.46-12,652.20

Finding the Fourth Proportional to 30,197.16, 45,278.46 and 12,652.20

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Solution

The fourth proportional to 30,197.16, 45,278.46 and 12,652.20 is: 18,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,197.16 : 45,278.46 = 12,652.20 : x
  2. Step 2: Convert to fraction form
    30,197.16/45,278.46 = 12,652.20/x
  3. Step 3: Cross multiply
    30,197.16x = 45,278.46 × 12,652.20
  4. Step 4: Simplify right side
    30,197.16x = 572,872,131.61
  5. Step 5: Solve for x
    x = 572,872,131.61/30,197.16
  6. Step 6: Final answer
    x = 18,971.06

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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.