Home / 28,903.41-39,890.43-16,967.79

Finding the Fourth Proportional to 28,903.41, 39,890.43 and 16,967.79

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Solution

The fourth proportional to 28,903.41, 39,890.43 and 16,967.79 is: 23,417.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.41 : 39,890.43 = 16,967.79 : x
  2. Step 2: Convert to fraction form
    28,903.41/39,890.43 = 16,967.79/x
  3. Step 3: Cross multiply
    28,903.41x = 39,890.43 × 16,967.79
  4. Step 4: Simplify right side
    28,903.41x = 676,852,439.25
  5. Step 5: Solve for x
    x = 676,852,439.25/28,903.41
  6. Step 6: Final answer
    x = 23,417.74

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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.