Home / 20,685.65-31,009.23-7,535.03

Finding the Fourth Proportional to 20,685.65, 31,009.23 and 7,535.03

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Solution

The fourth proportional to 20,685.65, 31,009.23 and 7,535.03 is: 11,295.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685.65 : 31,009.23 = 7,535.03 : x
  2. Step 2: Convert to fraction form
    20,685.65/31,009.23 = 7,535.03/x
  3. Step 3: Cross multiply
    20,685.65x = 31,009.23 × 7,535.03
  4. Step 4: Simplify right side
    20,685.65x = 233,655,323.28
  5. Step 5: Solve for x
    x = 233,655,323.28/20,685.65
  6. Step 6: Final answer
    x = 11,295.53

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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.