Home / 28,430.37-42,664.01-12,848.13

Finding the Fourth Proportional to 28,430.37, 42,664.01 and 12,848.13

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Solution

The fourth proportional to 28,430.37, 42,664.01 and 12,848.13 is: 19,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430.37 : 42,664.01 = 12,848.13 : x
  2. Step 2: Convert to fraction form
    28,430.37/42,664.01 = 12,848.13/x
  3. Step 3: Cross multiply
    28,430.37x = 42,664.01 × 12,848.13
  4. Step 4: Simplify right side
    28,430.37x = 548,152,682.56
  5. Step 5: Solve for x
    x = 548,152,682.56/28,430.37
  6. Step 6: Final answer
    x = 19,280.53

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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.