Home / 28,258.07-42,357.47-9,531.63

Finding the Fourth Proportional to 28,258.07, 42,357.47 and 9,531.63

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Solution

The fourth proportional to 28,258.07, 42,357.47 and 9,531.63 is: 14,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.07 : 42,357.47 = 9,531.63 : x
  2. Step 2: Convert to fraction form
    28,258.07/42,357.47 = 9,531.63/x
  3. Step 3: Cross multiply
    28,258.07x = 42,357.47 × 9,531.63
  4. Step 4: Simplify right side
    28,258.07x = 403,735,684.12
  5. Step 5: Solve for x
    x = 403,735,684.12/28,258.07
  6. Step 6: Final answer
    x = 14,287.45

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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.