Home / 38,454.63-57,681.60-12,159.39

Finding the Fourth Proportional to 38,454.63, 57,681.60 and 12,159.39

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Solution

The fourth proportional to 38,454.63, 57,681.60 and 12,159.39 is: 18,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.63 : 57,681.60 = 12,159.39 : x
  2. Step 2: Convert to fraction form
    38,454.63/57,681.60 = 12,159.39/x
  3. Step 3: Cross multiply
    38,454.63x = 57,681.60 × 12,159.39
  4. Step 4: Simplify right side
    38,454.63x = 701,373,070.22
  5. Step 5: Solve for x
    x = 701,373,070.22/38,454.63
  6. Step 6: Final answer
    x = 18,238.98

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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.