Home / 28,113.84-38,797.02-15,538.50

Finding the Fourth Proportional to 28,113.84, 38,797.02 and 15,538.50

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Solution

The fourth proportional to 28,113.84, 38,797.02 and 15,538.50 is: 21,443.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.84 : 38,797.02 = 15,538.50 : x
  2. Step 2: Convert to fraction form
    28,113.84/38,797.02 = 15,538.50/x
  3. Step 3: Cross multiply
    28,113.84x = 38,797.02 × 15,538.50
  4. Step 4: Simplify right side
    28,113.84x = 602,847,495.27
  5. Step 5: Solve for x
    x = 602,847,495.27/28,113.84
  6. Step 6: Final answer
    x = 21,443.09

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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.