Home / 38,340.20-57,512.10-12,045.80

Finding the Fourth Proportional to 38,340.20, 57,512.10 and 12,045.80

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Solution

The fourth proportional to 38,340.20, 57,512.10 and 12,045.80 is: 18,069.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,340.20 : 57,512.10 = 12,045.80 : x
  2. Step 2: Convert to fraction form
    38,340.20/57,512.10 = 12,045.80/x
  3. Step 3: Cross multiply
    38,340.20x = 57,512.10 × 12,045.80
  4. Step 4: Simplify right side
    38,340.20x = 692,779,254.18
  5. Step 5: Solve for x
    x = 692,779,254.18/38,340.20
  6. Step 6: Final answer
    x = 18,069.27

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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.