Home / 21,087.64-31,565.58-14,073.40

Finding the Fourth Proportional to 21,087.64, 31,565.58 and 14,073.40

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Solution

The fourth proportional to 21,087.64, 31,565.58 and 14,073.40 is: 21,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,087.64 : 31,565.58 = 14,073.40 : x
  2. Step 2: Convert to fraction form
    21,087.64/31,565.58 = 14,073.40/x
  3. Step 3: Cross multiply
    21,087.64x = 31,565.58 × 14,073.40
  4. Step 4: Simplify right side
    21,087.64x = 444,235,033.57
  5. Step 5: Solve for x
    x = 444,235,033.57/21,087.64
  6. Step 6: Final answer
    x = 21,066.13

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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.