Home / 28,920.06-43,341.21-11,385.18

Finding the Fourth Proportional to 28,920.06, 43,341.21 and 11,385.18

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Solution

The fourth proportional to 28,920.06, 43,341.21 and 11,385.18 is: 17,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.06 : 43,341.21 = 11,385.18 : x
  2. Step 2: Convert to fraction form
    28,920.06/43,341.21 = 11,385.18/x
  3. Step 3: Cross multiply
    28,920.06x = 43,341.21 × 11,385.18
  4. Step 4: Simplify right side
    28,920.06x = 493,447,477.27
  5. Step 5: Solve for x
    x = 493,447,477.27/28,920.06
  6. Step 6: Final answer
    x = 17,062.46

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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.