Home / 21,498.67-29,672.58-12,547.00

Finding the Fourth Proportional to 21,498.67, 29,672.58 and 12,547.00

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Solution

The fourth proportional to 21,498.67, 29,672.58 and 12,547.00 is: 17,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.67 : 29,672.58 = 12,547.00 : x
  2. Step 2: Convert to fraction form
    21,498.67/29,672.58 = 12,547.00/x
  3. Step 3: Cross multiply
    21,498.67x = 29,672.58 × 12,547.00
  4. Step 4: Simplify right side
    21,498.67x = 372,301,874.83
  5. Step 5: Solve for x
    x = 372,301,874.83/21,498.67
  6. Step 6: Final answer
    x = 17,317.44

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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.