Home / 28,476.06-42,681.68-12,657.33

Finding the Fourth Proportional to 28,476.06, 42,681.68 and 12,657.33

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Solution

The fourth proportional to 28,476.06, 42,681.68 and 12,657.33 is: 18,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.06 : 42,681.68 = 12,657.33 : x
  2. Step 2: Convert to fraction form
    28,476.06/42,681.68 = 12,657.33/x
  3. Step 3: Cross multiply
    28,476.06x = 42,681.68 × 12,657.33
  4. Step 4: Simplify right side
    28,476.06x = 540,235,926.95
  5. Step 5: Solve for x
    x = 540,235,926.95/28,476.06
  6. Step 6: Final answer
    x = 18,971.58

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1.5x scale

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.