Home / 55,318.40-82,962.72-20,258.24

Finding the Fourth Proportional to 55,318.40, 82,962.72 and 20,258.24

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Solution

The fourth proportional to 55,318.40, 82,962.72 and 20,258.24 is: 30,381.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,318.40 : 82,962.72 = 20,258.24 : x
  2. Step 2: Convert to fraction form
    55,318.40/82,962.72 = 20,258.24/x
  3. Step 3: Cross multiply
    55,318.40x = 82,962.72 × 20,258.24
  4. Step 4: Simplify right side
    55,318.40x = 1,680,678,692.81
  5. Step 5: Solve for x
    x = 1,680,678,692.81/55,318.40
  6. Step 6: Final answer
    x = 30,381.91

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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.