Home / 30,498.84-45,750.60-10,500.12

Finding the Fourth Proportional to 30,498.84, 45,750.60 and 10,500.12

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Solution

The fourth proportional to 30,498.84, 45,750.60 and 10,500.12 is: 15,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,498.84 : 45,750.60 = 10,500.12 : x
  2. Step 2: Convert to fraction form
    30,498.84/45,750.60 = 10,500.12/x
  3. Step 3: Cross multiply
    30,498.84x = 45,750.60 × 10,500.12
  4. Step 4: Simplify right side
    30,498.84x = 480,386,790.07
  5. Step 5: Solve for x
    x = 480,386,790.07/30,498.84
  6. Step 6: Final answer
    x = 15,750.99

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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.