Home / 28,531.36-42,804.47-10,995.40

Finding the Fourth Proportional to 28,531.36, 42,804.47 and 10,995.40

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Solution

The fourth proportional to 28,531.36, 42,804.47 and 10,995.40 is: 16,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.36 : 42,804.47 = 10,995.40 : x
  2. Step 2: Convert to fraction form
    28,531.36/42,804.47 = 10,995.40/x
  3. Step 3: Cross multiply
    28,531.36x = 42,804.47 × 10,995.40
  4. Step 4: Simplify right side
    28,531.36x = 470,652,269.44
  5. Step 5: Solve for x
    x = 470,652,269.44/28,531.36
  6. Step 6: Final answer
    x = 16,495.96

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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.