Home / 21,659.06-32,488.60-7,807.70

Finding the Fourth Proportional to 21,659.06, 32,488.60 and 7,807.70

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Solution

The fourth proportional to 21,659.06, 32,488.60 and 7,807.70 is: 11,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,659.06 : 32,488.60 = 7,807.70 : x
  2. Step 2: Convert to fraction form
    21,659.06/32,488.60 = 7,807.70/x
  3. Step 3: Cross multiply
    21,659.06x = 32,488.60 × 7,807.70
  4. Step 4: Simplify right side
    21,659.06x = 253,661,242.22
  5. Step 5: Solve for x
    x = 253,661,242.22/21,659.06
  6. Step 6: Final answer
    x = 11,711.55

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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.