Home / 30,292.10-45,445.34-9,515.60

Finding the Fourth Proportional to 30,292.10, 45,445.34 and 9,515.60

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Solution

The fourth proportional to 30,292.10, 45,445.34 and 9,515.60 is: 14,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,292.10 : 45,445.34 = 9,515.60 : x
  2. Step 2: Convert to fraction form
    30,292.10/45,445.34 = 9,515.60/x
  3. Step 3: Cross multiply
    30,292.10x = 45,445.34 × 9,515.60
  4. Step 4: Simplify right side
    30,292.10x = 432,439,677.30
  5. Step 5: Solve for x
    x = 432,439,677.30/30,292.10
  6. Step 6: Final answer
    x = 14,275.66

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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.