Home / 28,054.43-42,090.87-10,288.47

Finding the Fourth Proportional to 28,054.43, 42,090.87 and 10,288.47

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Solution

The fourth proportional to 28,054.43, 42,090.87 and 10,288.47 is: 15,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.43 : 42,090.87 = 10,288.47 : x
  2. Step 2: Convert to fraction form
    28,054.43/42,090.87 = 10,288.47/x
  3. Step 3: Cross multiply
    28,054.43x = 42,090.87 × 10,288.47
  4. Step 4: Simplify right side
    28,054.43x = 433,050,526.12
  5. Step 5: Solve for x
    x = 433,050,526.12/28,054.43
  6. Step 6: Final answer
    x = 15,436.09

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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.