Home / 43,437.51-65,159.91-13,859.55

Finding the Fourth Proportional to 43,437.51, 65,159.91 and 13,859.55

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Solution

The fourth proportional to 43,437.51, 65,159.91 and 13,859.55 is: 20,790.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,437.51 : 65,159.91 = 13,859.55 : x
  2. Step 2: Convert to fraction form
    43,437.51/65,159.91 = 13,859.55/x
  3. Step 3: Cross multiply
    43,437.51x = 65,159.91 × 13,859.55
  4. Step 4: Simplify right side
    43,437.51x = 903,087,030.64
  5. Step 5: Solve for x
    x = 903,087,030.64/43,437.51
  6. Step 6: Final answer
    x = 20,790.49

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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.