Home / 21,832.40-32,740.60-7,045.20

Finding the Fourth Proportional to 21,832.40, 32,740.60 and 7,045.20

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Solution

The fourth proportional to 21,832.40, 32,740.60 and 7,045.20 is: 10,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,832.40 : 32,740.60 = 7,045.20 : x
  2. Step 2: Convert to fraction form
    21,832.40/32,740.60 = 7,045.20/x
  3. Step 3: Cross multiply
    21,832.40x = 32,740.60 × 7,045.20
  4. Step 4: Simplify right side
    21,832.40x = 230,664,075.12
  5. Step 5: Solve for x
    x = 230,664,075.12/21,832.40
  6. Step 6: Final answer
    x = 10,565.22

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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.