Home / 28,007.79-38,650.35-16,070.88

Finding the Fourth Proportional to 28,007.79, 38,650.35 and 16,070.88

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Solution

The fourth proportional to 28,007.79, 38,650.35 and 16,070.88 is: 22,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.79 : 38,650.35 = 16,070.88 : x
  2. Step 2: Convert to fraction form
    28,007.79/38,650.35 = 16,070.88/x
  3. Step 3: Cross multiply
    28,007.79x = 38,650.35 × 16,070.88
  4. Step 4: Simplify right side
    28,007.79x = 621,145,136.81
  5. Step 5: Solve for x
    x = 621,145,136.81/28,007.79
  6. Step 6: Final answer
    x = 22,177.58

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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.