Home / 28,443.02-39,235.59-19,957.86

Finding the Fourth Proportional to 28,443.02, 39,235.59 and 19,957.86

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Solution

The fourth proportional to 28,443.02, 39,235.59 and 19,957.86 is: 27,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.02 : 39,235.59 = 19,957.86 : x
  2. Step 2: Convert to fraction form
    28,443.02/39,235.59 = 19,957.86/x
  3. Step 3: Cross multiply
    28,443.02x = 39,235.59 × 19,957.86
  4. Step 4: Simplify right side
    28,443.02x = 783,058,412.24
  5. Step 5: Solve for x
    x = 783,058,412.24/28,443.02
  6. Step 6: Final answer
    x = 27,530.78

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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.