Home / 22,156.32-30,580.48-12,730.08

Finding the Fourth Proportional to 22,156.32, 30,580.48 and 12,730.08

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Solution

The fourth proportional to 22,156.32, 30,580.48 and 12,730.08 is: 17,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,156.32 : 30,580.48 = 12,730.08 : x
  2. Step 2: Convert to fraction form
    22,156.32/30,580.48 = 12,730.08/x
  3. Step 3: Cross multiply
    22,156.32x = 30,580.48 × 12,730.08
  4. Step 4: Simplify right side
    22,156.32x = 389,291,956.84
  5. Step 5: Solve for x
    x = 389,291,956.84/22,156.32
  6. Step 6: Final answer
    x = 17,570.24

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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.