Home / 42,485.23-63,723.70-12,903.32

Finding the Fourth Proportional to 42,485.23, 63,723.70 and 12,903.32

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Solution

The fourth proportional to 42,485.23, 63,723.70 and 12,903.32 is: 19,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,485.23 : 63,723.70 = 12,903.32 : x
  2. Step 2: Convert to fraction form
    42,485.23/63,723.70 = 12,903.32/x
  3. Step 3: Cross multiply
    42,485.23x = 63,723.70 × 12,903.32
  4. Step 4: Simplify right side
    42,485.23x = 822,247,468.12
  5. Step 5: Solve for x
    x = 822,247,468.12/42,485.23
  6. Step 6: Final answer
    x = 19,353.72

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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.