Home / 35,865.14-53,820.18-13,680.45

Finding the Fourth Proportional to 35,865.14, 53,820.18 and 13,680.45

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Solution

The fourth proportional to 35,865.14, 53,820.18 and 13,680.45 is: 20,529.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,865.14 : 53,820.18 = 13,680.45 : x
  2. Step 2: Convert to fraction form
    35,865.14/53,820.18 = 13,680.45/x
  3. Step 3: Cross multiply
    35,865.14x = 53,820.18 × 13,680.45
  4. Step 4: Simplify right side
    35,865.14x = 736,284,281.48
  5. Step 5: Solve for x
    x = 736,284,281.48/35,865.14
  6. Step 6: Final answer
    x = 20,529.25

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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.