Home / 28,509.48-42,687.54-18,624.36

Finding the Fourth Proportional to 28,509.48, 42,687.54 and 18,624.36

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Solution

The fourth proportional to 28,509.48, 42,687.54 and 18,624.36 is: 27,886.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.48 : 42,687.54 = 18,624.36 : x
  2. Step 2: Convert to fraction form
    28,509.48/42,687.54 = 18,624.36/x
  3. Step 3: Cross multiply
    28,509.48x = 42,687.54 × 18,624.36
  4. Step 4: Simplify right side
    28,509.48x = 795,028,112.47
  5. Step 5: Solve for x
    x = 795,028,112.47/28,509.48
  6. Step 6: Final answer
    x = 27,886.45

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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.