Home / 42,530.09-63,804.36-12,947.16

Finding the Fourth Proportional to 42,530.09, 63,804.36 and 12,947.16

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Solution

The fourth proportional to 42,530.09, 63,804.36 and 12,947.16 is: 19,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,530.09 : 63,804.36 = 12,947.16 : x
  2. Step 2: Convert to fraction form
    42,530.09/63,804.36 = 12,947.16/x
  3. Step 3: Cross multiply
    42,530.09x = 63,804.36 × 12,947.16
  4. Step 4: Simplify right side
    42,530.09x = 826,085,257.62
  5. Step 5: Solve for x
    x = 826,085,257.62/42,530.09
  6. Step 6: Final answer
    x = 19,423.55

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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.