Home / 19,340.88-29,038.26-9,987.65

Finding the Fourth Proportional to 19,340.88, 29,038.26 and 9,987.65

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Solution

The fourth proportional to 19,340.88, 29,038.26 and 9,987.65 is: 14,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340.88 : 29,038.26 = 9,987.65 : x
  2. Step 2: Convert to fraction form
    19,340.88/29,038.26 = 9,987.65/x
  3. Step 3: Cross multiply
    19,340.88x = 29,038.26 × 9,987.65
  4. Step 4: Simplify right side
    19,340.88x = 290,024,141.99
  5. Step 5: Solve for x
    x = 290,024,141.99/19,340.88
  6. Step 6: Final answer
    x = 14,995.40

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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.