Home / 20,484.77-28,271.09-12,532.28

Finding the Fourth Proportional to 20,484.77, 28,271.09 and 12,532.28

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Solution

The fourth proportional to 20,484.77, 28,271.09 and 12,532.28 is: 17,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.77 : 28,271.09 = 12,532.28 : x
  2. Step 2: Convert to fraction form
    20,484.77/28,271.09 = 12,532.28/x
  3. Step 3: Cross multiply
    20,484.77x = 28,271.09 × 12,532.28
  4. Step 4: Simplify right side
    20,484.77x = 354,301,105.76
  5. Step 5: Solve for x
    x = 354,301,105.76/20,484.77
  6. Step 6: Final answer
    x = 17,295.83

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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.