Home / 30,157.40-45,202.23-14,154.79

Finding the Fourth Proportional to 30,157.40, 45,202.23 and 14,154.79

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Solution

The fourth proportional to 30,157.40, 45,202.23 and 14,154.79 is: 21,216.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.40 : 45,202.23 = 14,154.79 : x
  2. Step 2: Convert to fraction form
    30,157.40/45,202.23 = 14,154.79/x
  3. Step 3: Cross multiply
    30,157.40x = 45,202.23 × 14,154.79
  4. Step 4: Simplify right side
    30,157.40x = 639,828,073.18
  5. Step 5: Solve for x
    x = 639,828,073.18/30,157.40
  6. Step 6: Final answer
    x = 21,216.29

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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.