Home / 21,585.12-32,364.72-14,638.56

Finding the Fourth Proportional to 21,585.12, 32,364.72 and 14,638.56

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Solution

The fourth proportional to 21,585.12, 32,364.72 and 14,638.56 is: 21,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.12 : 32,364.72 = 14,638.56 : x
  2. Step 2: Convert to fraction form
    21,585.12/32,364.72 = 14,638.56/x
  3. Step 3: Cross multiply
    21,585.12x = 32,364.72 × 14,638.56
  4. Step 4: Simplify right side
    21,585.12x = 473,772,895.60
  5. Step 5: Solve for x
    x = 473,772,895.60/21,585.12
  6. Step 6: Final answer
    x = 21,949.05

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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.