Home / 28,326.12-39,088.60-15,750.60

Finding the Fourth Proportional to 28,326.12, 39,088.60 and 15,750.60

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Solution

The fourth proportional to 28,326.12, 39,088.60 and 15,750.60 is: 21,735.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.12 : 39,088.60 = 15,750.60 : x
  2. Step 2: Convert to fraction form
    28,326.12/39,088.60 = 15,750.60/x
  3. Step 3: Cross multiply
    28,326.12x = 39,088.60 × 15,750.60
  4. Step 4: Simplify right side
    28,326.12x = 615,668,903.16
  5. Step 5: Solve for x
    x = 615,668,903.16/28,326.12
  6. Step 6: Final answer
    x = 21,735.02

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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.