Home / 21,376.32-29,513.16-19,134.24

Finding the Fourth Proportional to 21,376.32, 29,513.16 and 19,134.24

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Solution

The fourth proportional to 21,376.32, 29,513.16 and 19,134.24 is: 26,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.32 : 29,513.16 = 19,134.24 : x
  2. Step 2: Convert to fraction form
    21,376.32/29,513.16 = 19,134.24/x
  3. Step 3: Cross multiply
    21,376.32x = 29,513.16 × 19,134.24
  4. Step 4: Simplify right side
    21,376.32x = 564,711,886.60
  5. Step 5: Solve for x
    x = 564,711,886.60/21,376.32
  6. Step 6: Final answer
    x = 26,417.64

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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.