Home / 42,679.32-64,011.24-11,507.28

Finding the Fourth Proportional to 42,679.32, 64,011.24 and 11,507.28

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Solution

The fourth proportional to 42,679.32, 64,011.24 and 11,507.28 is: 17,258.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,679.32 : 64,011.24 = 11,507.28 : x
  2. Step 2: Convert to fraction form
    42,679.32/64,011.24 = 11,507.28/x
  3. Step 3: Cross multiply
    42,679.32x = 64,011.24 × 11,507.28
  4. Step 4: Simplify right side
    42,679.32x = 736,595,261.83
  5. Step 5: Solve for x
    x = 736,595,261.83/42,679.32
  6. Step 6: Final answer
    x = 17,258.83

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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.