Home / 20,814.76-28,681.86-14,833.72

Finding the Fourth Proportional to 20,814.76, 28,681.86 and 14,833.72

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Solution

The fourth proportional to 20,814.76, 28,681.86 and 14,833.72 is: 20,440.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814.76 : 28,681.86 = 14,833.72 : x
  2. Step 2: Convert to fraction form
    20,814.76/28,681.86 = 14,833.72/x
  3. Step 3: Cross multiply
    20,814.76x = 28,681.86 × 14,833.72
  4. Step 4: Simplify right side
    20,814.76x = 425,458,680.32
  5. Step 5: Solve for x
    x = 425,458,680.32/20,814.76
  6. Step 6: Final answer
    x = 20,440.24

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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.