Home / 28,028.61-42,055.65-10,499.76

Finding the Fourth Proportional to 28,028.61, 42,055.65 and 10,499.76

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Solution

The fourth proportional to 28,028.61, 42,055.65 and 10,499.76 is: 15,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028.61 : 42,055.65 = 10,499.76 : x
  2. Step 2: Convert to fraction form
    28,028.61/42,055.65 = 10,499.76/x
  3. Step 3: Cross multiply
    28,028.61x = 42,055.65 × 10,499.76
  4. Step 4: Simplify right side
    28,028.61x = 441,574,231.64
  5. Step 5: Solve for x
    x = 441,574,231.64/28,028.61
  6. Step 6: Final answer
    x = 15,754.41

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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.