Home / 38,455.60-57,634.80-28,055.20

Finding the Fourth Proportional to 38,455.60, 57,634.80 and 28,055.20

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Solution

The fourth proportional to 38,455.60, 57,634.80 and 28,055.20 is: 42,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.60 : 57,634.80 = 28,055.20 : x
  2. Step 2: Convert to fraction form
    38,455.60/57,634.80 = 28,055.20/x
  3. Step 3: Cross multiply
    38,455.60x = 57,634.80 × 28,055.20
  4. Step 4: Simplify right side
    38,455.60x = 1,616,955,840.96
  5. Step 5: Solve for x
    x = 1,616,955,840.96/38,455.60
  6. Step 6: Final answer
    x = 42,047.34

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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.