Home / 28,927.95-43,398.50-12,288.53

Finding the Fourth Proportional to 28,927.95, 43,398.50 and 12,288.53

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Solution

The fourth proportional to 28,927.95, 43,398.50 and 12,288.53 is: 18,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.95 : 43,398.50 = 12,288.53 : x
  2. Step 2: Convert to fraction form
    28,927.95/43,398.50 = 12,288.53/x
  3. Step 3: Cross multiply
    28,927.95x = 43,398.50 × 12,288.53
  4. Step 4: Simplify right side
    28,927.95x = 533,303,490.77
  5. Step 5: Solve for x
    x = 533,303,490.77/28,927.95
  6. Step 6: Final answer
    x = 18,435.58

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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.