Home / 19,570.10-29,342.40-12,886.38

Finding the Fourth Proportional to 19,570.10, 29,342.40 and 12,886.38

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Solution

The fourth proportional to 19,570.10, 29,342.40 and 12,886.38 is: 19,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570.10 : 29,342.40 = 12,886.38 : x
  2. Step 2: Convert to fraction form
    19,570.10/29,342.40 = 12,886.38/x
  3. Step 3: Cross multiply
    19,570.10x = 29,342.40 × 12,886.38
  4. Step 4: Simplify right side
    19,570.10x = 378,117,316.51
  5. Step 5: Solve for x
    x = 378,117,316.51/19,570.10
  6. Step 6: Final answer
    x = 19,321.17

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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.