Home / 28,427.58-39,225.60-16,488.45

Finding the Fourth Proportional to 28,427.58, 39,225.60 and 16,488.45

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Solution

The fourth proportional to 28,427.58, 39,225.60 and 16,488.45 is: 22,751.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427.58 : 39,225.60 = 16,488.45 : x
  2. Step 2: Convert to fraction form
    28,427.58/39,225.60 = 16,488.45/x
  3. Step 3: Cross multiply
    28,427.58x = 39,225.60 × 16,488.45
  4. Step 4: Simplify right side
    28,427.58x = 646,769,344.32
  5. Step 5: Solve for x
    x = 646,769,344.32/28,427.58
  6. Step 6: Final answer
    x = 22,751.47

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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.