Home / 21,033.04-31,492.08-20,475.36

Finding the Fourth Proportional to 21,033.04, 31,492.08 and 20,475.36

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Solution

The fourth proportional to 21,033.04, 31,492.08 and 20,475.36 is: 30,657.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.04 : 31,492.08 = 20,475.36 : x
  2. Step 2: Convert to fraction form
    21,033.04/31,492.08 = 20,475.36/x
  3. Step 3: Cross multiply
    21,033.04x = 31,492.08 × 20,475.36
  4. Step 4: Simplify right side
    21,033.04x = 644,811,675.15
  5. Step 5: Solve for x
    x = 644,811,675.15/21,033.04
  6. Step 6: Final answer
    x = 30,657.08

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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.