Home / 15,677.60-23,479.95-10,720.40

Finding the Fourth Proportional to 15,677.60, 23,479.95 and 10,720.40

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Solution

The fourth proportional to 15,677.60, 23,479.95 and 10,720.40 is: 16,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677.60 : 23,479.95 = 10,720.40 : x
  2. Step 2: Convert to fraction form
    15,677.60/23,479.95 = 10,720.40/x
  3. Step 3: Cross multiply
    15,677.60x = 23,479.95 × 10,720.40
  4. Step 4: Simplify right side
    15,677.60x = 251,714,455.98
  5. Step 5: Solve for x
    x = 251,714,455.98/15,677.60
  6. Step 6: Final answer
    x = 16,055.68

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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.