Home / 20,712.19-28,573.05-14,000.16

Finding the Fourth Proportional to 20,712.19, 28,573.05 and 14,000.16

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Solution

The fourth proportional to 20,712.19, 28,573.05 and 14,000.16 is: 19,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.19 : 28,573.05 = 14,000.16 : x
  2. Step 2: Convert to fraction form
    20,712.19/28,573.05 = 14,000.16/x
  3. Step 3: Cross multiply
    20,712.19x = 28,573.05 × 14,000.16
  4. Step 4: Simplify right side
    20,712.19x = 400,027,271.69
  5. Step 5: Solve for x
    x = 400,027,271.69/20,712.19
  6. Step 6: Final answer
    x = 19,313.62

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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.