Home / 21,904.10-32,856.15-9,430.10

Finding the Fourth Proportional to 21,904.10, 32,856.15 and 9,430.10

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Solution

The fourth proportional to 21,904.10, 32,856.15 and 9,430.10 is: 14,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.10 : 32,856.15 = 9,430.10 : x
  2. Step 2: Convert to fraction form
    21,904.10/32,856.15 = 9,430.10/x
  3. Step 3: Cross multiply
    21,904.10x = 32,856.15 × 9,430.10
  4. Step 4: Simplify right side
    21,904.10x = 309,836,780.12
  5. Step 5: Solve for x
    x = 309,836,780.12/21,904.10
  6. Step 6: Final answer
    x = 14,145.15

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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.