Home / 42,879.18-64,315.67-14,416.32

Finding the Fourth Proportional to 42,879.18, 64,315.67 and 14,416.32

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Solution

The fourth proportional to 42,879.18, 64,315.67 and 14,416.32 is: 21,623.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,879.18 : 64,315.67 = 14,416.32 : x
  2. Step 2: Convert to fraction form
    42,879.18/64,315.67 = 14,416.32/x
  3. Step 3: Cross multiply
    42,879.18x = 64,315.67 × 14,416.32
  4. Step 4: Simplify right side
    42,879.18x = 927,195,207.65
  5. Step 5: Solve for x
    x = 927,195,207.65/42,879.18
  6. Step 6: Final answer
    x = 21,623.44

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1.5x scale

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.