Home / 20,598.48-28,423.80-12,641.04

Finding the Fourth Proportional to 20,598.48, 28,423.80 and 12,641.04

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Solution

The fourth proportional to 20,598.48, 28,423.80 and 12,641.04 is: 17,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.48 : 28,423.80 = 12,641.04 : x
  2. Step 2: Convert to fraction form
    20,598.48/28,423.80 = 12,641.04/x
  3. Step 3: Cross multiply
    20,598.48x = 28,423.80 × 12,641.04
  4. Step 4: Simplify right side
    20,598.48x = 359,306,392.75
  5. Step 5: Solve for x
    x = 359,306,392.75/20,598.48
  6. Step 6: Final answer
    x = 17,443.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.