Home / 42,798.06-64,172.39-13,207.95

Finding the Fourth Proportional to 42,798.06, 64,172.39 and 13,207.95

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Solution

The fourth proportional to 42,798.06, 64,172.39 and 13,207.95 is: 19,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,798.06 : 64,172.39 = 13,207.95 : x
  2. Step 2: Convert to fraction form
    42,798.06/64,172.39 = 13,207.95/x
  3. Step 3: Cross multiply
    42,798.06x = 64,172.39 × 13,207.95
  4. Step 4: Simplify right side
    42,798.06x = 847,585,652.46
  5. Step 5: Solve for x
    x = 847,585,652.46/42,798.06
  6. Step 6: Final answer
    x = 19,804.30

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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.