Home / 20,856.16-31,205.76-14,628.33

Finding the Fourth Proportional to 20,856.16, 31,205.76 and 14,628.33

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Solution

The fourth proportional to 20,856.16, 31,205.76 and 14,628.33 is: 21,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856.16 : 31,205.76 = 14,628.33 : x
  2. Step 2: Convert to fraction form
    20,856.16/31,205.76 = 14,628.33/x
  3. Step 3: Cross multiply
    20,856.16x = 31,205.76 × 14,628.33
  4. Step 4: Simplify right side
    20,856.16x = 456,488,155.18
  5. Step 5: Solve for x
    x = 456,488,155.18/20,856.16
  6. Step 6: Final answer
    x = 21,887.45

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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.