Home / 28,533.92-42,808.16-11,888.32

Finding the Fourth Proportional to 28,533.92, 42,808.16 and 11,888.32

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Solution

The fourth proportional to 28,533.92, 42,808.16 and 11,888.32 is: 17,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,533.92 : 42,808.16 = 11,888.32 : x
  2. Step 2: Convert to fraction form
    28,533.92/42,808.16 = 11,888.32/x
  3. Step 3: Cross multiply
    28,533.92x = 42,808.16 × 11,888.32
  4. Step 4: Simplify right side
    28,533.92x = 508,917,104.69
  5. Step 5: Solve for x
    x = 508,917,104.69/28,533.92
  6. Step 6: Final answer
    x = 17,835.51

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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.