Home / 30,148.57-45,216.48-10,156.20

Finding the Fourth Proportional to 30,148.57, 45,216.48 and 10,156.20

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Solution

The fourth proportional to 30,148.57, 45,216.48 and 10,156.20 is: 15,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,148.57 : 45,216.48 = 10,156.20 : x
  2. Step 2: Convert to fraction form
    30,148.57/45,216.48 = 10,156.20/x
  3. Step 3: Cross multiply
    30,148.57x = 45,216.48 × 10,156.20
  4. Step 4: Simplify right side
    30,148.57x = 459,227,679.91
  5. Step 5: Solve for x
    x = 459,227,679.91/30,148.57
  6. Step 6: Final answer
    x = 15,232.15

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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.