Home / 42,867.76-64,304.64-13,281.76

Finding the Fourth Proportional to 42,867.76, 64,304.64 and 13,281.76

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Solution

The fourth proportional to 42,867.76, 64,304.64 and 13,281.76 is: 19,923.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,867.76 : 64,304.64 = 13,281.76 : x
  2. Step 2: Convert to fraction form
    42,867.76/64,304.64 = 13,281.76/x
  3. Step 3: Cross multiply
    42,867.76x = 64,304.64 × 13,281.76
  4. Step 4: Simplify right side
    42,867.76x = 854,078,795.37
  5. Step 5: Solve for x
    x = 854,078,795.37/42,867.76
  6. Step 6: Final answer
    x = 19,923.57

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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.