Home / 21,427.32-32,085.60-14,784.30

Finding the Fourth Proportional to 21,427.32, 32,085.60 and 14,784.30

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Solution

The fourth proportional to 21,427.32, 32,085.60 and 14,784.30 is: 22,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.32 : 32,085.60 = 14,784.30 : x
  2. Step 2: Convert to fraction form
    21,427.32/32,085.60 = 14,784.30/x
  3. Step 3: Cross multiply
    21,427.32x = 32,085.60 × 14,784.30
  4. Step 4: Simplify right side
    21,427.32x = 474,363,136.08
  5. Step 5: Solve for x
    x = 474,363,136.08/21,427.32
  6. Step 6: Final answer
    x = 22,138.24

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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.