Home / 26,615.40-39,923.10-12,570.81

Finding the Fourth Proportional to 26,615.40, 39,923.10 and 12,570.81

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Solution

The fourth proportional to 26,615.40, 39,923.10 and 12,570.81 is: 18,856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,615.40 : 39,923.10 = 12,570.81 : x
  2. Step 2: Convert to fraction form
    26,615.40/39,923.10 = 12,570.81/x
  3. Step 3: Cross multiply
    26,615.40x = 39,923.10 × 12,570.81
  4. Step 4: Simplify right side
    26,615.40x = 501,865,704.71
  5. Step 5: Solve for x
    x = 501,865,704.71/26,615.40
  6. Step 6: Final answer
    x = 18,856.22

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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.