Home / 43,029.60-64,547.24-11,439.20

Finding the Fourth Proportional to 43,029.60, 64,547.24 and 11,439.20

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Solution

The fourth proportional to 43,029.60, 64,547.24 and 11,439.20 is: 17,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,029.60 : 64,547.24 = 11,439.20 : x
  2. Step 2: Convert to fraction form
    43,029.60/64,547.24 = 11,439.20/x
  3. Step 3: Cross multiply
    43,029.60x = 64,547.24 × 11,439.20
  4. Step 4: Simplify right side
    43,029.60x = 738,368,407.88
  5. Step 5: Solve for x
    x = 738,368,407.88/43,029.60
  6. Step 6: Final answer
    x = 17,159.55

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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.