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Finding the Fourth Proportional to 28,900.63, 43,359.80 and 25,920.24

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Solution

The fourth proportional to 28,900.63, 43,359.80 and 25,920.24 is: 38,888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.63 : 43,359.80 = 25,920.24 : x
  2. Step 2: Convert to fraction form
    28,900.63/43,359.80 = 25,920.24/x
  3. Step 3: Cross multiply
    28,900.63x = 43,359.80 × 25,920.24
  4. Step 4: Simplify right side
    28,900.63x = 1,123,896,422.35
  5. Step 5: Solve for x
    x = 1,123,896,422.35/28,900.63
  6. Step 6: Final answer
    x = 38,888.30

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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.