Home / 28,085.52-42,136.98-16,853.40

Finding the Fourth Proportional to 28,085.52, 42,136.98 and 16,853.40

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Solution

The fourth proportional to 28,085.52, 42,136.98 and 16,853.40 is: 25,285.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.52 : 42,136.98 = 16,853.40 : x
  2. Step 2: Convert to fraction form
    28,085.52/42,136.98 = 16,853.40/x
  3. Step 3: Cross multiply
    28,085.52x = 42,136.98 × 16,853.40
  4. Step 4: Simplify right side
    28,085.52x = 710,151,378.73
  5. Step 5: Solve for x
    x = 710,151,378.73/28,085.52
  6. Step 6: Final answer
    x = 25,285.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.