Home / 30,975.16-42,746.80-19,042.52

Finding the Fourth Proportional to 30,975.16, 42,746.80 and 19,042.52

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Solution

The fourth proportional to 30,975.16, 42,746.80 and 19,042.52 is: 26,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.16 : 42,746.80 = 19,042.52 : x
  2. Step 2: Convert to fraction form
    30,975.16/42,746.80 = 19,042.52/x
  3. Step 3: Cross multiply
    30,975.16x = 42,746.80 × 19,042.52
  4. Step 4: Simplify right side
    30,975.16x = 814,006,793.94
  5. Step 5: Solve for x
    x = 814,006,793.94/30,975.16
  6. Step 6: Final answer
    x = 26,279.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.