Home / 28,203.91-42,307.14-15,714.49

Finding the Fourth Proportional to 28,203.91, 42,307.14 and 15,714.49

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Solution

The fourth proportional to 28,203.91, 42,307.14 and 15,714.49 is: 23,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.91 : 42,307.14 = 15,714.49 : x
  2. Step 2: Convert to fraction form
    28,203.91/42,307.14 = 15,714.49/x
  3. Step 3: Cross multiply
    28,203.91x = 42,307.14 × 15,714.49
  4. Step 4: Simplify right side
    28,203.91x = 664,835,128.46
  5. Step 5: Solve for x
    x = 664,835,128.46/28,203.91
  6. Step 6: Final answer
    x = 23,572.45

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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.