Home / 28,101.07-42,145.88-10,325.62

Finding the Fourth Proportional to 28,101.07, 42,145.88 and 10,325.62

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Solution

The fourth proportional to 28,101.07, 42,145.88 and 10,325.62 is: 15,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.07 : 42,145.88 = 10,325.62 : x
  2. Step 2: Convert to fraction form
    28,101.07/42,145.88 = 10,325.62/x
  3. Step 3: Cross multiply
    28,101.07x = 42,145.88 × 10,325.62
  4. Step 4: Simplify right side
    28,101.07x = 435,182,261.89
  5. Step 5: Solve for x
    x = 435,182,261.89/28,101.07
  6. Step 6: Final answer
    x = 15,486.32

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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.