Home / 15,853.20-23,731.20-14,978.40

Finding the Fourth Proportional to 15,853.20, 23,731.20 and 14,978.40

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Solution

The fourth proportional to 15,853.20, 23,731.20 and 14,978.40 is: 22,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853.20 : 23,731.20 = 14,978.40 : x
  2. Step 2: Convert to fraction form
    15,853.20/23,731.20 = 14,978.40/x
  3. Step 3: Cross multiply
    15,853.20x = 23,731.20 × 14,978.40
  4. Step 4: Simplify right side
    15,853.20x = 355,455,406.08
  5. Step 5: Solve for x
    x = 355,455,406.08/15,853.20
  6. Step 6: Final answer
    x = 22,421.68

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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.