Home / 30,256.10-45,384.15-19,175.30

Finding the Fourth Proportional to 30,256.10, 45,384.15 and 19,175.30

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Solution

The fourth proportional to 30,256.10, 45,384.15 and 19,175.30 is: 28,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,256.10 : 45,384.15 = 19,175.30 : x
  2. Step 2: Convert to fraction form
    30,256.10/45,384.15 = 19,175.30/x
  3. Step 3: Cross multiply
    30,256.10x = 45,384.15 × 19,175.30
  4. Step 4: Simplify right side
    30,256.10x = 870,254,691.50
  5. Step 5: Solve for x
    x = 870,254,691.50/30,256.10
  6. Step 6: Final answer
    x = 28,762.95

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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.