Home / 42,900.30-64,340.19-14,821.35

Finding the Fourth Proportional to 42,900.30, 64,340.19 and 14,821.35

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Solution

The fourth proportional to 42,900.30, 64,340.19 and 14,821.35 is: 22,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,900.30 : 64,340.19 = 14,821.35 : x
  2. Step 2: Convert to fraction form
    42,900.30/64,340.19 = 14,821.35/x
  3. Step 3: Cross multiply
    42,900.30x = 64,340.19 × 14,821.35
  4. Step 4: Simplify right side
    42,900.30x = 953,608,475.06
  5. Step 5: Solve for x
    x = 953,608,475.06/42,900.30
  6. Step 6: Final answer
    x = 22,228.48

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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.