Home / 42,970.28-64,389.50-17,996.66

Finding the Fourth Proportional to 42,970.28, 64,389.50 and 17,996.66

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Solution

The fourth proportional to 42,970.28, 64,389.50 and 17,996.66 is: 26,967.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,970.28 : 64,389.50 = 17,996.66 : x
  2. Step 2: Convert to fraction form
    42,970.28/64,389.50 = 17,996.66/x
  3. Step 3: Cross multiply
    42,970.28x = 64,389.50 × 17,996.66
  4. Step 4: Simplify right side
    42,970.28x = 1,158,795,939.07
  5. Step 5: Solve for x
    x = 1,158,795,939.07/42,970.28
  6. Step 6: Final answer
    x = 26,967.38

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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.