Home / 20,856.66-31,206.51-14,628.83

Finding the Fourth Proportional to 20,856.66, 31,206.51 and 14,628.83

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Solution

The fourth proportional to 20,856.66, 31,206.51 and 14,628.83 is: 21,888.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856.66 : 31,206.51 = 14,628.83 : x
  2. Step 2: Convert to fraction form
    20,856.66/31,206.51 = 14,628.83/x
  3. Step 3: Cross multiply
    20,856.66x = 31,206.51 × 14,628.83
  4. Step 4: Simplify right side
    20,856.66x = 456,514,573.65
  5. Step 5: Solve for x
    x = 456,514,573.65/20,856.66
  6. Step 6: Final answer
    x = 21,888.19

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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.