Home / 28,960.50-39,966.60-16,384.98

Finding the Fourth Proportional to 28,960.50, 39,966.60 and 16,384.98

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Solution

The fourth proportional to 28,960.50, 39,966.60 and 16,384.98 is: 22,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.50 : 39,966.60 = 16,384.98 : x
  2. Step 2: Convert to fraction form
    28,960.50/39,966.60 = 16,384.98/x
  3. Step 3: Cross multiply
    28,960.50x = 39,966.60 × 16,384.98
  4. Step 4: Simplify right side
    28,960.50x = 654,851,941.67
  5. Step 5: Solve for x
    x = 654,851,941.67/28,960.50
  6. Step 6: Final answer
    x = 22,611.90

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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.