Home / 58,015.98-86,999.36-20,585.47

Finding the Fourth Proportional to 58,015.98, 86,999.36 and 20,585.47

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Solution

The fourth proportional to 58,015.98, 86,999.36 and 20,585.47 is: 30,869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,015.98 : 86,999.36 = 20,585.47 : x
  2. Step 2: Convert to fraction form
    58,015.98/86,999.36 = 20,585.47/x
  3. Step 3: Cross multiply
    58,015.98x = 86,999.36 × 20,585.47
  4. Step 4: Simplify right side
    58,015.98x = 1,790,922,715.30
  5. Step 5: Solve for x
    x = 1,790,922,715.30/58,015.98
  6. Step 6: Final answer
    x = 30,869.47

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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.