Home / 21,621.60-32,417.32-11,071.12

Finding the Fourth Proportional to 21,621.60, 32,417.32 and 11,071.12

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Solution

The fourth proportional to 21,621.60, 32,417.32 and 11,071.12 is: 16,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.60 : 32,417.32 = 11,071.12 : x
  2. Step 2: Convert to fraction form
    21,621.60/32,417.32 = 11,071.12/x
  3. Step 3: Cross multiply
    21,621.60x = 32,417.32 × 11,071.12
  4. Step 4: Simplify right side
    21,621.60x = 358,896,039.80
  5. Step 5: Solve for x
    x = 358,896,039.80/21,621.60
  6. Step 6: Final answer
    x = 16,598.96

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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.