Home / 19,828.08-29,714.52-13,172.40

Finding the Fourth Proportional to 19,828.08, 29,714.52 and 13,172.40

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Solution

The fourth proportional to 19,828.08, 29,714.52 and 13,172.40 is: 19,740.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.08 : 29,714.52 = 13,172.40 : x
  2. Step 2: Convert to fraction form
    19,828.08/29,714.52 = 13,172.40/x
  3. Step 3: Cross multiply
    19,828.08x = 29,714.52 × 13,172.40
  4. Step 4: Simplify right side
    19,828.08x = 391,411,543.25
  5. Step 5: Solve for x
    x = 391,411,543.25/19,828.08
  6. Step 6: Final answer
    x = 19,740.26

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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.