Home / 20,323.68-28,051.36-13,237.76

Finding the Fourth Proportional to 20,323.68, 28,051.36 and 13,237.76

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Solution

The fourth proportional to 20,323.68, 28,051.36 and 13,237.76 is: 18,271.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.68 : 28,051.36 = 13,237.76 : x
  2. Step 2: Convert to fraction form
    20,323.68/28,051.36 = 13,237.76/x
  3. Step 3: Cross multiply
    20,323.68x = 28,051.36 × 13,237.76
  4. Step 4: Simplify right side
    20,323.68x = 371,337,171.35
  5. Step 5: Solve for x
    x = 371,337,171.35/20,323.68
  6. Step 6: Final answer
    x = 18,271.16

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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.