Home / 38,208.20-57,312.30-13,276.40

Finding the Fourth Proportional to 38,208.20, 57,312.30 and 13,276.40

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Solution

The fourth proportional to 38,208.20, 57,312.30 and 13,276.40 is: 19,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,208.20 : 57,312.30 = 13,276.40 : x
  2. Step 2: Convert to fraction form
    38,208.20/57,312.30 = 13,276.40/x
  3. Step 3: Cross multiply
    38,208.20x = 57,312.30 × 13,276.40
  4. Step 4: Simplify right side
    38,208.20x = 760,901,019.72
  5. Step 5: Solve for x
    x = 760,901,019.72/38,208.20
  6. Step 6: Final answer
    x = 19,914.60

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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.