Home / 30,278.08-45,416.76-10,556.58

Finding the Fourth Proportional to 30,278.08, 45,416.76 and 10,556.58

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Solution

The fourth proportional to 30,278.08, 45,416.76 and 10,556.58 is: 15,834.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.08 : 45,416.76 = 10,556.58 : x
  2. Step 2: Convert to fraction form
    30,278.08/45,416.76 = 10,556.58/x
  3. Step 3: Cross multiply
    30,278.08x = 45,416.76 × 10,556.58
  4. Step 4: Simplify right side
    30,278.08x = 479,445,660.28
  5. Step 5: Solve for x
    x = 479,445,660.28/30,278.08
  6. Step 6: Final answer
    x = 15,834.74

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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.