Home / 42,973.20-64,459.80-13,393.41

Finding the Fourth Proportional to 42,973.20, 64,459.80 and 13,393.41

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Solution

The fourth proportional to 42,973.20, 64,459.80 and 13,393.41 is: 20,090.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,973.20 : 64,459.80 = 13,393.41 : x
  2. Step 2: Convert to fraction form
    42,973.20/64,459.80 = 13,393.41/x
  3. Step 3: Cross multiply
    42,973.20x = 64,459.80 × 13,393.41
  4. Step 4: Simplify right side
    42,973.20x = 863,336,529.92
  5. Step 5: Solve for x
    x = 863,336,529.92/42,973.20
  6. Step 6: Final answer
    x = 20,090.12

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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.