Home / 42,030.17-63,054.48-12,450.32

Finding the Fourth Proportional to 42,030.17, 63,054.48 and 12,450.32

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Solution

The fourth proportional to 42,030.17, 63,054.48 and 12,450.32 is: 18,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,030.17 : 63,054.48 = 12,450.32 : x
  2. Step 2: Convert to fraction form
    42,030.17/63,054.48 = 12,450.32/x
  3. Step 3: Cross multiply
    42,030.17x = 63,054.48 × 12,450.32
  4. Step 4: Simplify right side
    42,030.17x = 785,048,453.43
  5. Step 5: Solve for x
    x = 785,048,453.43/42,030.17
  6. Step 6: Final answer
    x = 18,678.21

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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.