Home / 34,305.12-47,340.72-21,740.16

Finding the Fourth Proportional to 34,305.12, 47,340.72 and 21,740.16

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Solution

The fourth proportional to 34,305.12, 47,340.72 and 21,740.16 is: 30,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,305.12 : 47,340.72 = 21,740.16 : x
  2. Step 2: Convert to fraction form
    34,305.12/47,340.72 = 21,740.16/x
  3. Step 3: Cross multiply
    34,305.12x = 47,340.72 × 21,740.16
  4. Step 4: Simplify right side
    34,305.12x = 1,029,194,827.32
  5. Step 5: Solve for x
    x = 1,029,194,827.32/34,305.12
  6. Step 6: Final answer
    x = 30,001.20

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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.