Home / 30,227.10-45,304.20-15,428.40

Finding the Fourth Proportional to 30,227.10, 45,304.20 and 15,428.40

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Solution

The fourth proportional to 30,227.10, 45,304.20 and 15,428.40 is: 23,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,227.10 : 45,304.20 = 15,428.40 : x
  2. Step 2: Convert to fraction form
    30,227.10/45,304.20 = 15,428.40/x
  3. Step 3: Cross multiply
    30,227.10x = 45,304.20 × 15,428.40
  4. Step 4: Simplify right side
    30,227.10x = 698,971,319.28
  5. Step 5: Solve for x
    x = 698,971,319.28/30,227.10
  6. Step 6: Final answer
    x = 23,124.00

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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.