Home / 20,383.08-28,115.70-14,726.13

Finding the Fourth Proportional to 20,383.08, 28,115.70 and 14,726.13

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Solution

The fourth proportional to 20,383.08, 28,115.70 and 14,726.13 is: 20,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.08 : 28,115.70 = 14,726.13 : x
  2. Step 2: Convert to fraction form
    20,383.08/28,115.70 = 14,726.13/x
  3. Step 3: Cross multiply
    20,383.08x = 28,115.70 × 14,726.13
  4. Step 4: Simplify right side
    20,383.08x = 414,035,453.24
  5. Step 5: Solve for x
    x = 414,035,453.24/20,383.08
  6. Step 6: Final answer
    x = 20,312.70

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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.