Home / 28,498.56-42,755.70-11,866.40

Finding the Fourth Proportional to 28,498.56, 42,755.70 and 11,866.40

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Solution

The fourth proportional to 28,498.56, 42,755.70 and 11,866.40 is: 17,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.56 : 42,755.70 = 11,866.40 : x
  2. Step 2: Convert to fraction form
    28,498.56/42,755.70 = 11,866.40/x
  3. Step 3: Cross multiply
    28,498.56x = 42,755.70 × 11,866.40
  4. Step 4: Simplify right side
    28,498.56x = 507,356,238.48
  5. Step 5: Solve for x
    x = 507,356,238.48/28,498.56
  6. Step 6: Final answer
    x = 17,802.87

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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.