Home / 28,016.52-42,022.36-9,290.40

Finding the Fourth Proportional to 28,016.52, 42,022.36 and 9,290.40

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Solution

The fourth proportional to 28,016.52, 42,022.36 and 9,290.40 is: 13,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.52 : 42,022.36 = 9,290.40 : x
  2. Step 2: Convert to fraction form
    28,016.52/42,022.36 = 9,290.40/x
  3. Step 3: Cross multiply
    28,016.52x = 42,022.36 × 9,290.40
  4. Step 4: Simplify right side
    28,016.52x = 390,404,533.34
  5. Step 5: Solve for x
    x = 390,404,533.34/28,016.52
  6. Step 6: Final answer
    x = 13,934.80

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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.