Home / 28,307.84-42,473.28-11,681.60

Finding the Fourth Proportional to 28,307.84, 42,473.28 and 11,681.60

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Solution

The fourth proportional to 28,307.84, 42,473.28 and 11,681.60 is: 17,527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.84 : 42,473.28 = 11,681.60 : x
  2. Step 2: Convert to fraction form
    28,307.84/42,473.28 = 11,681.60/x
  3. Step 3: Cross multiply
    28,307.84x = 42,473.28 × 11,681.60
  4. Step 4: Simplify right side
    28,307.84x = 496,155,867.65
  5. Step 5: Solve for x
    x = 496,155,867.65/28,307.84
  6. Step 6: Final answer
    x = 17,527.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.