Home / 30,301.60-45,445.36-11,574.80

Finding the Fourth Proportional to 30,301.60, 45,445.36 and 11,574.80

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Solution

The fourth proportional to 30,301.60, 45,445.36 and 11,574.80 is: 17,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,301.60 : 45,445.36 = 11,574.80 : x
  2. Step 2: Convert to fraction form
    30,301.60/45,445.36 = 11,574.80/x
  3. Step 3: Cross multiply
    30,301.60x = 45,445.36 × 11,574.80
  4. Step 4: Simplify right side
    30,301.60x = 526,020,952.93
  5. Step 5: Solve for x
    x = 526,020,952.93/30,301.60
  6. Step 6: Final answer
    x = 17,359.51

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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.