Home / 21,368.10-29,501.90-19,126.15

Finding the Fourth Proportional to 21,368.10, 29,501.90 and 19,126.15

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Solution

The fourth proportional to 21,368.10, 29,501.90 and 19,126.15 is: 26,406.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.10 : 29,501.90 = 19,126.15 : x
  2. Step 2: Convert to fraction form
    21,368.10/29,501.90 = 19,126.15/x
  3. Step 3: Cross multiply
    21,368.10x = 29,501.90 × 19,126.15
  4. Step 4: Simplify right side
    21,368.10x = 564,257,669.05
  5. Step 5: Solve for x
    x = 564,257,669.05/21,368.10
  6. Step 6: Final answer
    x = 26,406.55

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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.