Home / 21,587.65-29,787-12,027.29

Finding the Fourth Proportional to 21,587.65, 29,787 and 12,027.29

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Solution

The fourth proportional to 21,587.65, 29,787 and 12,027.29 is: 16,595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.65 : 29,787 = 12,027.29 : x
  2. Step 2: Convert to fraction form
    21,587.65/29,787 = 12,027.29/x
  3. Step 3: Cross multiply
    21,587.65x = 29,787 × 12,027.29
  4. Step 4: Simplify right side
    21,587.65x = 358,256,887.23
  5. Step 5: Solve for x
    x = 358,256,887.23/21,587.65
  6. Step 6: Final answer
    x = 16,595.46

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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.