Home / 21,961.04-32,931.60-9,475.20

Finding the Fourth Proportional to 21,961.04, 32,931.60 and 9,475.20

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Solution

The fourth proportional to 21,961.04, 32,931.60 and 9,475.20 is: 14,208.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.04 : 32,931.60 = 9,475.20 : x
  2. Step 2: Convert to fraction form
    21,961.04/32,931.60 = 9,475.20/x
  3. Step 3: Cross multiply
    21,961.04x = 32,931.60 × 9,475.20
  4. Step 4: Simplify right side
    21,961.04x = 312,033,496.32
  5. Step 5: Solve for x
    x = 312,033,496.32/21,961.04
  6. Step 6: Final answer
    x = 14,208.50

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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.