Home / 28,191.30-38,903.99-15,444.93

Finding the Fourth Proportional to 28,191.30, 38,903.99 and 15,444.93

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Solution

The fourth proportional to 28,191.30, 38,903.99 and 15,444.93 is: 21,314.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.30 : 38,903.99 = 15,444.93 : x
  2. Step 2: Convert to fraction form
    28,191.30/38,903.99 = 15,444.93/x
  3. Step 3: Cross multiply
    28,191.30x = 38,903.99 × 15,444.93
  4. Step 4: Simplify right side
    28,191.30x = 600,869,325.05
  5. Step 5: Solve for x
    x = 600,869,325.05/28,191.30
  6. Step 6: Final answer
    x = 21,314.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.