Home / 28,159.83-42,239.48-11,300.40

Finding the Fourth Proportional to 28,159.83, 42,239.48 and 11,300.40

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Solution

The fourth proportional to 28,159.83, 42,239.48 and 11,300.40 is: 16,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159.83 : 42,239.48 = 11,300.40 : x
  2. Step 2: Convert to fraction form
    28,159.83/42,239.48 = 11,300.40/x
  3. Step 3: Cross multiply
    28,159.83x = 42,239.48 × 11,300.40
  4. Step 4: Simplify right side
    28,159.83x = 477,322,963.29
  5. Step 5: Solve for x
    x = 477,322,963.29/28,159.83
  6. Step 6: Final answer
    x = 16,950.49

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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.