Home / 58,191.36-87,288.12-18,751.92

Finding the Fourth Proportional to 58,191.36, 87,288.12 and 18,751.92

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Solution

The fourth proportional to 58,191.36, 87,288.12 and 18,751.92 is: 28,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,191.36 : 87,288.12 = 18,751.92 : x
  2. Step 2: Convert to fraction form
    58,191.36/87,288.12 = 18,751.92/x
  3. Step 3: Cross multiply
    58,191.36x = 87,288.12 × 18,751.92
  4. Step 4: Simplify right side
    58,191.36x = 1,636,819,843.19
  5. Step 5: Solve for x
    x = 1,636,819,843.19/58,191.36
  6. Step 6: Final answer
    x = 28,128.23

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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.