Home / 28,290.57-42,441.02-9,316.28

Finding the Fourth Proportional to 28,290.57, 42,441.02 and 9,316.28

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Solution

The fourth proportional to 28,290.57, 42,441.02 and 9,316.28 is: 13,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.57 : 42,441.02 = 9,316.28 : x
  2. Step 2: Convert to fraction form
    28,290.57/42,441.02 = 9,316.28/x
  3. Step 3: Cross multiply
    28,290.57x = 42,441.02 × 9,316.28
  4. Step 4: Simplify right side
    28,290.57x = 395,392,425.81
  5. Step 5: Solve for x
    x = 395,392,425.81/28,290.57
  6. Step 6: Final answer
    x = 13,976.12

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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.