Home / 26,318.40-36,315.36-15,708.48

Finding the Fourth Proportional to 26,318.40, 36,315.36 and 15,708.48

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Solution

The fourth proportional to 26,318.40, 36,315.36 and 15,708.48 is: 21,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,318.40 : 36,315.36 = 15,708.48 : x
  2. Step 2: Convert to fraction form
    26,318.40/36,315.36 = 15,708.48/x
  3. Step 3: Cross multiply
    26,318.40x = 36,315.36 × 15,708.48
  4. Step 4: Simplify right side
    26,318.40x = 570,459,106.25
  5. Step 5: Solve for x
    x = 570,459,106.25/26,318.40
  6. Step 6: Final answer
    x = 21,675.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.