Home / 23,011.40-34,492.80-13,129.40

Finding the Fourth Proportional to 23,011.40, 34,492.80 and 13,129.40

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Solution

The fourth proportional to 23,011.40, 34,492.80 and 13,129.40 is: 19,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,011.40 : 34,492.80 = 13,129.40 : x
  2. Step 2: Convert to fraction form
    23,011.40/34,492.80 = 13,129.40/x
  3. Step 3: Cross multiply
    23,011.40x = 34,492.80 × 13,129.40
  4. Step 4: Simplify right side
    23,011.40x = 452,869,768.32
  5. Step 5: Solve for x
    x = 452,869,768.32/23,011.40
  6. Step 6: Final answer
    x = 19,680.24

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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.