Home / 28,052.02-42,078.30-7,275.52

Finding the Fourth Proportional to 28,052.02, 42,078.30 and 7,275.52

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Solution

The fourth proportional to 28,052.02, 42,078.30 and 7,275.52 is: 10,913.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.02 : 42,078.30 = 7,275.52 : x
  2. Step 2: Convert to fraction form
    28,052.02/42,078.30 = 7,275.52/x
  3. Step 3: Cross multiply
    28,052.02x = 42,078.30 × 7,275.52
  4. Step 4: Simplify right side
    28,052.02x = 306,141,513.22
  5. Step 5: Solve for x
    x = 306,141,513.22/28,052.02
  6. Step 6: Final answer
    x = 10,913.35

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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.