Home / 20,976.63-31,473.59-15,457.83

Finding the Fourth Proportional to 20,976.63, 31,473.59 and 15,457.83

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Solution

The fourth proportional to 20,976.63, 31,473.59 and 15,457.83 is: 23,193.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976.63 : 31,473.59 = 15,457.83 : x
  2. Step 2: Convert to fraction form
    20,976.63/31,473.59 = 15,457.83/x
  3. Step 3: Cross multiply
    20,976.63x = 31,473.59 × 15,457.83
  4. Step 4: Simplify right side
    20,976.63x = 486,513,403.71
  5. Step 5: Solve for x
    x = 486,513,403.71/20,976.63
  6. Step 6: Final answer
    x = 23,193.12

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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.