Home / 19,487.58-29,218.28-10,005.65

Finding the Fourth Proportional to 19,487.58, 29,218.28 and 10,005.65

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Solution

The fourth proportional to 19,487.58, 29,218.28 and 10,005.65 is: 15,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.58 : 29,218.28 = 10,005.65 : x
  2. Step 2: Convert to fraction form
    19,487.58/29,218.28 = 10,005.65/x
  3. Step 3: Cross multiply
    19,487.58x = 29,218.28 × 10,005.65
  4. Step 4: Simplify right side
    19,487.58x = 292,347,762.20
  5. Step 5: Solve for x
    x = 292,347,762.20/19,487.58
  6. Step 6: Final answer
    x = 15,001.75

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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.