Home / 28,615.04-42,930.84-11,966.48

Finding the Fourth Proportional to 28,615.04, 42,930.84 and 11,966.48

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Solution

The fourth proportional to 28,615.04, 42,930.84 and 11,966.48 is: 17,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.04 : 42,930.84 = 11,966.48 : x
  2. Step 2: Convert to fraction form
    28,615.04/42,930.84 = 11,966.48/x
  3. Step 3: Cross multiply
    28,615.04x = 42,930.84 × 11,966.48
  4. Step 4: Simplify right side
    28,615.04x = 513,731,038.24
  5. Step 5: Solve for x
    x = 513,731,038.24/28,615.04
  6. Step 6: Final answer
    x = 17,953.18

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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.