Home / 28,688.36-39,585.63-16,110.68

Finding the Fourth Proportional to 28,688.36, 39,585.63 and 16,110.68

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Solution

The fourth proportional to 28,688.36, 39,585.63 and 16,110.68 is: 22,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.36 : 39,585.63 = 16,110.68 : x
  2. Step 2: Convert to fraction form
    28,688.36/39,585.63 = 16,110.68/x
  3. Step 3: Cross multiply
    28,688.36x = 39,585.63 × 16,110.68
  4. Step 4: Simplify right side
    28,688.36x = 637,751,417.53
  5. Step 5: Solve for x
    x = 637,751,417.53/28,688.36
  6. Step 6: Final answer
    x = 22,230.32

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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.