Home / 28,014.12-38,658.06-15,436.44

Finding the Fourth Proportional to 28,014.12, 38,658.06 and 15,436.44

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Solution

The fourth proportional to 28,014.12, 38,658.06 and 15,436.44 is: 21,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.12 : 38,658.06 = 15,436.44 : x
  2. Step 2: Convert to fraction form
    28,014.12/38,658.06 = 15,436.44/x
  3. Step 3: Cross multiply
    28,014.12x = 38,658.06 × 15,436.44
  4. Step 4: Simplify right side
    28,014.12x = 596,742,823.71
  5. Step 5: Solve for x
    x = 596,742,823.71/28,014.12
  6. Step 6: Final answer
    x = 21,301.50

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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.