Home / 30,456.32-45,688.14-10,730.80

Finding the Fourth Proportional to 30,456.32, 45,688.14 and 10,730.80

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Solution

The fourth proportional to 30,456.32, 45,688.14 and 10,730.80 is: 16,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456.32 : 45,688.14 = 10,730.80 : x
  2. Step 2: Convert to fraction form
    30,456.32/45,688.14 = 10,730.80/x
  3. Step 3: Cross multiply
    30,456.32x = 45,688.14 × 10,730.80
  4. Step 4: Simplify right side
    30,456.32x = 490,270,292.71
  5. Step 5: Solve for x
    x = 490,270,292.71/30,456.32
  6. Step 6: Final answer
    x = 16,097.49

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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.