Home / 21,904.13-32,879.58-9,430.34

Finding the Fourth Proportional to 21,904.13, 32,879.58 and 9,430.34

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Solution

The fourth proportional to 21,904.13, 32,879.58 and 9,430.34 is: 14,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.13 : 32,879.58 = 9,430.34 : x
  2. Step 2: Convert to fraction form
    21,904.13/32,879.58 = 9,430.34/x
  3. Step 3: Cross multiply
    21,904.13x = 32,879.58 × 9,430.34
  4. Step 4: Simplify right side
    21,904.13x = 310,065,454.06
  5. Step 5: Solve for x
    x = 310,065,454.06/21,904.13
  6. Step 6: Final answer
    x = 14,155.57

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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.