Home / 28,047.84-38,705.90-15,300.83

Finding the Fourth Proportional to 28,047.84, 38,705.90 and 15,300.83

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Solution

The fourth proportional to 28,047.84, 38,705.90 and 15,300.83 is: 21,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.84 : 38,705.90 = 15,300.83 : x
  2. Step 2: Convert to fraction form
    28,047.84/38,705.90 = 15,300.83/x
  3. Step 3: Cross multiply
    28,047.84x = 38,705.90 × 15,300.83
  4. Step 4: Simplify right side
    28,047.84x = 592,232,125.86
  5. Step 5: Solve for x
    x = 592,232,125.86/28,047.84
  6. Step 6: Final answer
    x = 21,115.07

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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.