Home / 43,215.80-64,823.76-28,490.49

Finding the Fourth Proportional to 43,215.80, 64,823.76 and 28,490.49

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Solution

The fourth proportional to 43,215.80, 64,823.76 and 28,490.49 is: 42,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.80 : 64,823.76 = 28,490.49 : x
  2. Step 2: Convert to fraction form
    43,215.80/64,823.76 = 28,490.49/x
  3. Step 3: Cross multiply
    43,215.80x = 64,823.76 × 28,490.49
  4. Step 4: Simplify right side
    43,215.80x = 1,846,860,686.04
  5. Step 5: Solve for x
    x = 1,846,860,686.04/43,215.80
  6. Step 6: Final answer
    x = 42,735.78

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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.