Home / 43,270.53-64,908.15-13,686.16

Finding the Fourth Proportional to 43,270.53, 64,908.15 and 13,686.16

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Solution

The fourth proportional to 43,270.53, 64,908.15 and 13,686.16 is: 20,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,270.53 : 64,908.15 = 13,686.16 : x
  2. Step 2: Convert to fraction form
    43,270.53/64,908.15 = 13,686.16/x
  3. Step 3: Cross multiply
    43,270.53x = 64,908.15 × 13,686.16
  4. Step 4: Simplify right side
    43,270.53x = 888,343,326.20
  5. Step 5: Solve for x
    x = 888,343,326.20/43,270.53
  6. Step 6: Final answer
    x = 20,529.98

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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.