Home / 30,250.17-45,347.58-12,721.23

Finding the Fourth Proportional to 30,250.17, 45,347.58 and 12,721.23

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Solution

The fourth proportional to 30,250.17, 45,347.58 and 12,721.23 is: 19,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.17 : 45,347.58 = 12,721.23 : x
  2. Step 2: Convert to fraction form
    30,250.17/45,347.58 = 12,721.23/x
  3. Step 3: Cross multiply
    30,250.17x = 45,347.58 × 12,721.23
  4. Step 4: Simplify right side
    30,250.17x = 576,876,995.12
  5. Step 5: Solve for x
    x = 576,876,995.12/30,250.17
  6. Step 6: Final answer
    x = 19,070.21

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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.