Home / 30,667.36-45,884.40-18,951.52

Finding the Fourth Proportional to 30,667.36, 45,884.40 and 18,951.52

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Solution

The fourth proportional to 30,667.36, 45,884.40 and 18,951.52 is: 28,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,667.36 : 45,884.40 = 18,951.52 : x
  2. Step 2: Convert to fraction form
    30,667.36/45,884.40 = 18,951.52/x
  3. Step 3: Cross multiply
    30,667.36x = 45,884.40 × 18,951.52
  4. Step 4: Simplify right side
    30,667.36x = 869,579,124.29
  5. Step 5: Solve for x
    x = 869,579,124.29/30,667.36
  6. Step 6: Final answer
    x = 28,355.20

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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.