Home / 21,657.06-32,485.59-7,805.70

Finding the Fourth Proportional to 21,657.06, 32,485.59 and 7,805.70

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Solution

The fourth proportional to 21,657.06, 32,485.59 and 7,805.70 is: 11,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657.06 : 32,485.59 = 7,805.70 : x
  2. Step 2: Convert to fraction form
    21,657.06/32,485.59 = 7,805.70/x
  3. Step 3: Cross multiply
    21,657.06x = 32,485.59 × 7,805.70
  4. Step 4: Simplify right side
    21,657.06x = 253,572,769.86
  5. Step 5: Solve for x
    x = 253,572,769.86/21,657.06
  6. Step 6: Final answer
    x = 11,708.55

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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.