Home / 28,010.48-42,014.24-10,478.98

Finding the Fourth Proportional to 28,010.48, 42,014.24 and 10,478.98

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Solution

The fourth proportional to 28,010.48, 42,014.24 and 10,478.98 is: 15,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.48 : 42,014.24 = 10,478.98 : x
  2. Step 2: Convert to fraction form
    28,010.48/42,014.24 = 10,478.98/x
  3. Step 3: Cross multiply
    28,010.48x = 42,014.24 × 10,478.98
  4. Step 4: Simplify right side
    28,010.48x = 440,266,118.21
  5. Step 5: Solve for x
    x = 440,266,118.21/28,010.48
  6. Step 6: Final answer
    x = 15,717.91

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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.