Home / 28,558.93-39,411.32-15,983.68

Finding the Fourth Proportional to 28,558.93, 39,411.32 and 15,983.68

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Solution

The fourth proportional to 28,558.93, 39,411.32 and 15,983.68 is: 22,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.93 : 39,411.32 = 15,983.68 : x
  2. Step 2: Convert to fraction form
    28,558.93/39,411.32 = 15,983.68/x
  3. Step 3: Cross multiply
    28,558.93x = 39,411.32 × 15,983.68
  4. Step 4: Simplify right side
    28,558.93x = 629,937,748.81
  5. Step 5: Solve for x
    x = 629,937,748.81/28,558.93
  6. Step 6: Final answer
    x = 22,057.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.