Home / 28,003.23-42,003.45-10,471.77

Finding the Fourth Proportional to 28,003.23, 42,003.45 and 10,471.77

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Solution

The fourth proportional to 28,003.23, 42,003.45 and 10,471.77 is: 15,707.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.23 : 42,003.45 = 10,471.77 : x
  2. Step 2: Convert to fraction form
    28,003.23/42,003.45 = 10,471.77/x
  3. Step 3: Cross multiply
    28,003.23x = 42,003.45 × 10,471.77
  4. Step 4: Simplify right side
    28,003.23x = 439,850,467.61
  5. Step 5: Solve for x
    x = 439,850,467.61/28,003.23
  6. Step 6: Final answer
    x = 15,707.13

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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.