Home / 30,157.28-45,191.16-28,472.24

Finding the Fourth Proportional to 30,157.28, 45,191.16 and 28,472.24

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Solution

The fourth proportional to 30,157.28, 45,191.16 and 28,472.24 is: 42,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.28 : 45,191.16 = 28,472.24 : x
  2. Step 2: Convert to fraction form
    30,157.28/45,191.16 = 28,472.24/x
  3. Step 3: Cross multiply
    30,157.28x = 45,191.16 × 28,472.24
  4. Step 4: Simplify right side
    30,157.28x = 1,286,693,553.40
  5. Step 5: Solve for x
    x = 1,286,693,553.40/30,157.28
  6. Step 6: Final answer
    x = 42,666.10

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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.