Home / 30,243.68-45,362.64-10,521.44

Finding the Fourth Proportional to 30,243.68, 45,362.64 and 10,521.44

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Solution

The fourth proportional to 30,243.68, 45,362.64 and 10,521.44 is: 15,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,243.68 : 45,362.64 = 10,521.44 : x
  2. Step 2: Convert to fraction form
    30,243.68/45,362.64 = 10,521.44/x
  3. Step 3: Cross multiply
    30,243.68x = 45,362.64 × 10,521.44
  4. Step 4: Simplify right side
    30,243.68x = 477,280,295.00
  5. Step 5: Solve for x
    x = 477,280,295.00/30,243.68
  6. Step 6: Final answer
    x = 15,781.16

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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.