Home / 30,298.02-45,425.16-12,758.28

Finding the Fourth Proportional to 30,298.02, 45,425.16 and 12,758.28

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Solution

The fourth proportional to 30,298.02, 45,425.16 and 12,758.28 is: 19,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,298.02 : 45,425.16 = 12,758.28 : x
  2. Step 2: Convert to fraction form
    30,298.02/45,425.16 = 12,758.28/x
  3. Step 3: Cross multiply
    30,298.02x = 45,425.16 × 12,758.28
  4. Step 4: Simplify right side
    30,298.02x = 579,546,910.32
  5. Step 5: Solve for x
    x = 579,546,910.32/30,298.02
  6. Step 6: Final answer
    x = 19,128.21

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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.