Home / 28,104.08-42,159.36-9,386.60

Finding the Fourth Proportional to 28,104.08, 42,159.36 and 9,386.60

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Solution

The fourth proportional to 28,104.08, 42,159.36 and 9,386.60 is: 14,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.08 : 42,159.36 = 9,386.60 : x
  2. Step 2: Convert to fraction form
    28,104.08/42,159.36 = 9,386.60/x
  3. Step 3: Cross multiply
    28,104.08x = 42,159.36 × 9,386.60
  4. Step 4: Simplify right side
    28,104.08x = 395,733,048.58
  5. Step 5: Solve for x
    x = 395,733,048.58/28,104.08
  6. Step 6: Final answer
    x = 14,080.98

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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.