Home / 30,184.18-45,261.69-12,649.30

Finding the Fourth Proportional to 30,184.18, 45,261.69 and 12,649.30

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Solution

The fourth proportional to 30,184.18, 45,261.69 and 12,649.30 is: 18,967.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,184.18 : 45,261.69 = 12,649.30 : x
  2. Step 2: Convert to fraction form
    30,184.18/45,261.69 = 12,649.30/x
  3. Step 3: Cross multiply
    30,184.18x = 45,261.69 × 12,649.30
  4. Step 4: Simplify right side
    30,184.18x = 572,528,534.73
  5. Step 5: Solve for x
    x = 572,528,534.73/30,184.18
  6. Step 6: Final answer
    x = 18,967.84

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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.