Home / 42,803.06-64,212.62-13,213.95

Finding the Fourth Proportional to 42,803.06, 64,212.62 and 13,213.95

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Solution

The fourth proportional to 42,803.06, 64,212.62 and 13,213.95 is: 19,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,803.06 : 64,212.62 = 13,213.95 : x
  2. Step 2: Convert to fraction form
    42,803.06/64,212.62 = 13,213.95/x
  3. Step 3: Cross multiply
    42,803.06x = 64,212.62 × 13,213.95
  4. Step 4: Simplify right side
    42,803.06x = 848,502,283.98
  5. Step 5: Solve for x
    x = 848,502,283.98/42,803.06
  6. Step 6: Final answer
    x = 19,823.40

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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.