Home / 30,191.60-45,280.56-9,130.76

Finding the Fourth Proportional to 30,191.60, 45,280.56 and 9,130.76

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Solution

The fourth proportional to 30,191.60, 45,280.56 and 9,130.76 is: 13,694.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191.60 : 45,280.56 = 9,130.76 : x
  2. Step 2: Convert to fraction form
    30,191.60/45,280.56 = 9,130.76/x
  3. Step 3: Cross multiply
    30,191.60x = 45,280.56 × 9,130.76
  4. Step 4: Simplify right side
    30,191.60x = 413,445,926.03
  5. Step 5: Solve for x
    x = 413,445,926.03/30,191.60
  6. Step 6: Final answer
    x = 13,694.07

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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.