Home / 30,641.20-45,961.80-9,864.70

Finding the Fourth Proportional to 30,641.20, 45,961.80 and 9,864.70

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Solution

The fourth proportional to 30,641.20, 45,961.80 and 9,864.70 is: 14,797.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,641.20 : 45,961.80 = 9,864.70 : x
  2. Step 2: Convert to fraction form
    30,641.20/45,961.80 = 9,864.70/x
  3. Step 3: Cross multiply
    30,641.20x = 45,961.80 × 9,864.70
  4. Step 4: Simplify right side
    30,641.20x = 453,399,368.46
  5. Step 5: Solve for x
    x = 453,399,368.46/30,641.20
  6. Step 6: Final answer
    x = 14,797.05

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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.