Home / 28,308.28-39,054.54-18,235.94

Finding the Fourth Proportional to 28,308.28, 39,054.54 and 18,235.94

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Solution

The fourth proportional to 28,308.28, 39,054.54 and 18,235.94 is: 25,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.28 : 39,054.54 = 18,235.94 : x
  2. Step 2: Convert to fraction form
    28,308.28/39,054.54 = 18,235.94/x
  3. Step 3: Cross multiply
    28,308.28x = 39,054.54 × 18,235.94
  4. Step 4: Simplify right side
    28,308.28x = 712,196,248.17
  5. Step 5: Solve for x
    x = 712,196,248.17/28,308.28
  6. Step 6: Final answer
    x = 25,158.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.