Home / 21,803.52-30,234.36-21,064.80

Finding the Fourth Proportional to 21,803.52, 30,234.36 and 21,064.80

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Solution

The fourth proportional to 21,803.52, 30,234.36 and 21,064.80 is: 29,210.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.52 : 30,234.36 = 21,064.80 : x
  2. Step 2: Convert to fraction form
    21,803.52/30,234.36 = 21,064.80/x
  3. Step 3: Cross multiply
    21,803.52x = 30,234.36 × 21,064.80
  4. Step 4: Simplify right side
    21,803.52x = 636,880,746.53
  5. Step 5: Solve for x
    x = 636,880,746.53/21,803.52
  6. Step 6: Final answer
    x = 29,210.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.