Home / 31,728.80-47,547.60-17,848.48

Finding the Fourth Proportional to 31,728.80, 47,547.60 and 17,848.48

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Solution

The fourth proportional to 31,728.80, 47,547.60 and 17,848.48 is: 26,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.80 : 47,547.60 = 17,848.48 : x
  2. Step 2: Convert to fraction form
    31,728.80/47,547.60 = 17,848.48/x
  3. Step 3: Cross multiply
    31,728.80x = 47,547.60 × 17,848.48
  4. Step 4: Simplify right side
    31,728.80x = 848,652,387.65
  5. Step 5: Solve for x
    x = 848,652,387.65/31,728.80
  6. Step 6: Final answer
    x = 26,747.07

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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.