Home / 30,257.70-45,332.55-14,640.90

Finding the Fourth Proportional to 30,257.70, 45,332.55 and 14,640.90

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Solution

The fourth proportional to 30,257.70, 45,332.55 and 14,640.90 is: 21,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.70 : 45,332.55 = 14,640.90 : x
  2. Step 2: Convert to fraction form
    30,257.70/45,332.55 = 14,640.90/x
  3. Step 3: Cross multiply
    30,257.70x = 45,332.55 × 14,640.90
  4. Step 4: Simplify right side
    30,257.70x = 663,709,331.30
  5. Step 5: Solve for x
    x = 663,709,331.30/30,257.70
  6. Step 6: Final answer
    x = 21,935.22

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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.