Home / 28,008.21-42,028.65-10,490.34

Finding the Fourth Proportional to 28,008.21, 42,028.65 and 10,490.34

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Solution

The fourth proportional to 28,008.21, 42,028.65 and 10,490.34 is: 15,741.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.21 : 42,028.65 = 10,490.34 : x
  2. Step 2: Convert to fraction form
    28,008.21/42,028.65 = 10,490.34/x
  3. Step 3: Cross multiply
    28,008.21x = 42,028.65 × 10,490.34
  4. Step 4: Simplify right side
    28,008.21x = 440,894,828.24
  5. Step 5: Solve for x
    x = 440,894,828.24/28,008.21
  6. Step 6: Final answer
    x = 15,741.63

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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.