Home / 20,859.23-28,778.40-14,484.12

Finding the Fourth Proportional to 20,859.23, 28,778.40 and 14,484.12

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Solution

The fourth proportional to 20,859.23, 28,778.40 and 14,484.12 is: 19,983.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859.23 : 28,778.40 = 14,484.12 : x
  2. Step 2: Convert to fraction form
    20,859.23/28,778.40 = 14,484.12/x
  3. Step 3: Cross multiply
    20,859.23x = 28,778.40 × 14,484.12
  4. Step 4: Simplify right side
    20,859.23x = 416,829,799.01
  5. Step 5: Solve for x
    x = 416,829,799.01/20,859.23
  6. Step 6: Final answer
    x = 19,983.00

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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.