Home / 28,117.02-38,795.10-16,790.20

Finding the Fourth Proportional to 28,117.02, 38,795.10 and 16,790.20

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Solution

The fourth proportional to 28,117.02, 38,795.10 and 16,790.20 is: 23,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.02 : 38,795.10 = 16,790.20 : x
  2. Step 2: Convert to fraction form
    28,117.02/38,795.10 = 16,790.20/x
  3. Step 3: Cross multiply
    28,117.02x = 38,795.10 × 16,790.20
  4. Step 4: Simplify right side
    28,117.02x = 651,377,488.02
  5. Step 5: Solve for x
    x = 651,377,488.02/28,117.02
  6. Step 6: Final answer
    x = 23,166.66

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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.