Home / 30,666.43-45,865.45-28,424.76

Finding the Fourth Proportional to 30,666.43, 45,865.45 and 28,424.76

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Solution

The fourth proportional to 30,666.43, 45,865.45 and 28,424.76 is: 42,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666.43 : 45,865.45 = 28,424.76 : x
  2. Step 2: Convert to fraction form
    30,666.43/45,865.45 = 28,424.76/x
  3. Step 3: Cross multiply
    30,666.43x = 45,865.45 × 28,424.76
  4. Step 4: Simplify right side
    30,666.43x = 1,303,714,408.54
  5. Step 5: Solve for x
    x = 1,303,714,408.54/30,666.43
  6. Step 6: Final answer
    x = 42,512.75

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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.