Home / 30,646.20-45,969.30-9,869.70

Finding the Fourth Proportional to 30,646.20, 45,969.30 and 9,869.70

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Solution

The fourth proportional to 30,646.20, 45,969.30 and 9,869.70 is: 14,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,646.20 : 45,969.30 = 9,869.70 : x
  2. Step 2: Convert to fraction form
    30,646.20/45,969.30 = 9,869.70/x
  3. Step 3: Cross multiply
    30,646.20x = 45,969.30 × 9,869.70
  4. Step 4: Simplify right side
    30,646.20x = 453,703,200.21
  5. Step 5: Solve for x
    x = 453,703,200.21/30,646.20
  6. Step 6: Final answer
    x = 14,804.55

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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.