Home / 28,372.84-39,152.10-15,798.76

Finding the Fourth Proportional to 28,372.84, 39,152.10 and 15,798.76

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Solution

The fourth proportional to 28,372.84, 39,152.10 and 15,798.76 is: 21,800.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.84 : 39,152.10 = 15,798.76 : x
  2. Step 2: Convert to fraction form
    28,372.84/39,152.10 = 15,798.76/x
  3. Step 3: Cross multiply
    28,372.84x = 39,152.10 × 15,798.76
  4. Step 4: Simplify right side
    28,372.84x = 618,554,631.40
  5. Step 5: Solve for x
    x = 618,554,631.40/28,372.84
  6. Step 6: Final answer
    x = 21,800.94

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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.