Home / 30,196.40-45,276.71-9,130.05

Finding the Fourth Proportional to 30,196.40, 45,276.71 and 9,130.05

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Solution

The fourth proportional to 30,196.40, 45,276.71 and 9,130.05 is: 13,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,196.40 : 45,276.71 = 9,130.05 : x
  2. Step 2: Convert to fraction form
    30,196.40/45,276.71 = 9,130.05/x
  3. Step 3: Cross multiply
    30,196.40x = 45,276.71 × 9,130.05
  4. Step 4: Simplify right side
    30,196.40x = 413,378,580.49
  5. Step 5: Solve for x
    x = 413,378,580.49/30,196.40
  6. Step 6: Final answer
    x = 13,689.67

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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.