Home / 22,579.28-31,159.67-12,507.92

Finding the Fourth Proportional to 22,579.28, 31,159.67 and 12,507.92

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Solution

The fourth proportional to 22,579.28, 31,159.67 and 12,507.92 is: 17,261.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.28 : 31,159.67 = 12,507.92 : x
  2. Step 2: Convert to fraction form
    22,579.28/31,159.67 = 12,507.92/x
  3. Step 3: Cross multiply
    22,579.28x = 31,159.67 × 12,507.92
  4. Step 4: Simplify right side
    22,579.28x = 389,742,659.59
  5. Step 5: Solve for x
    x = 389,742,659.59/22,579.28
  6. Step 6: Final answer
    x = 17,261.08

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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.