Home / 20,764.05-28,643.47-14,051.93

Finding the Fourth Proportional to 20,764.05, 28,643.47 and 14,051.93

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Solution

The fourth proportional to 20,764.05, 28,643.47 and 14,051.93 is: 19,384.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.05 : 28,643.47 = 14,051.93 : x
  2. Step 2: Convert to fraction form
    20,764.05/28,643.47 = 14,051.93/x
  3. Step 3: Cross multiply
    20,764.05x = 28,643.47 × 14,051.93
  4. Step 4: Simplify right side
    20,764.05x = 402,496,097.21
  5. Step 5: Solve for x
    x = 402,496,097.21/20,764.05
  6. Step 6: Final answer
    x = 19,384.28

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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.