Home / 28,366.18-42,555.59-8,646.28

Finding the Fourth Proportional to 28,366.18, 42,555.59 and 8,646.28

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Solution

The fourth proportional to 28,366.18, 42,555.59 and 8,646.28 is: 12,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.18 : 42,555.59 = 8,646.28 : x
  2. Step 2: Convert to fraction form
    28,366.18/42,555.59 = 8,646.28/x
  3. Step 3: Cross multiply
    28,366.18x = 42,555.59 × 8,646.28
  4. Step 4: Simplify right side
    28,366.18x = 367,947,478.14
  5. Step 5: Solve for x
    x = 367,947,478.14/28,366.18
  6. Step 6: Final answer
    x = 12,971.34

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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.