Home / 28,935.96-43,403.10-9,215.70

Finding the Fourth Proportional to 28,935.96, 43,403.10 and 9,215.70

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Solution

The fourth proportional to 28,935.96, 43,403.10 and 9,215.70 is: 13,823.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.96 : 43,403.10 = 9,215.70 : x
  2. Step 2: Convert to fraction form
    28,935.96/43,403.10 = 9,215.70/x
  3. Step 3: Cross multiply
    28,935.96x = 43,403.10 × 9,215.70
  4. Step 4: Simplify right side
    28,935.96x = 399,989,948.67
  5. Step 5: Solve for x
    x = 399,989,948.67/28,935.96
  6. Step 6: Final answer
    x = 13,823.28

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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.