Home / 30,714.15-42,385.38-17,285.63

Finding the Fourth Proportional to 30,714.15, 42,385.38 and 17,285.63

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Solution

The fourth proportional to 30,714.15, 42,385.38 and 17,285.63 is: 23,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,714.15 : 42,385.38 = 17,285.63 : x
  2. Step 2: Convert to fraction form
    30,714.15/42,385.38 = 17,285.63/x
  3. Step 3: Cross multiply
    30,714.15x = 42,385.38 × 17,285.63
  4. Step 4: Simplify right side
    30,714.15x = 732,657,784.16
  5. Step 5: Solve for x
    x = 732,657,784.16/30,714.15
  6. Step 6: Final answer
    x = 23,854.08

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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.