Home / 28,041.36-42,060.88-11,400.76

Finding the Fourth Proportional to 28,041.36, 42,060.88 and 11,400.76

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Solution

The fourth proportional to 28,041.36, 42,060.88 and 11,400.76 is: 17,100.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.36 : 42,060.88 = 11,400.76 : x
  2. Step 2: Convert to fraction form
    28,041.36/42,060.88 = 11,400.76/x
  3. Step 3: Cross multiply
    28,041.36x = 42,060.88 × 11,400.76
  4. Step 4: Simplify right side
    28,041.36x = 479,526,104.20
  5. Step 5: Solve for x
    x = 479,526,104.20/28,041.36
  6. Step 6: Final answer
    x = 17,100.68

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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.