Home / 28,830.74-39,787.80-16,898.18

Finding the Fourth Proportional to 28,830.74, 39,787.80 and 16,898.18

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Solution

The fourth proportional to 28,830.74, 39,787.80 and 16,898.18 is: 23,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.74 : 39,787.80 = 16,898.18 : x
  2. Step 2: Convert to fraction form
    28,830.74/39,787.80 = 16,898.18/x
  3. Step 3: Cross multiply
    28,830.74x = 39,787.80 × 16,898.18
  4. Step 4: Simplify right side
    28,830.74x = 672,341,406.20
  5. Step 5: Solve for x
    x = 672,341,406.20/28,830.74
  6. Step 6: Final answer
    x = 23,320.30

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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.