Home / 70,013.20-105,019.58-17,422.70

Finding the Fourth Proportional to 70,013.20, 105,019.58 and 17,422.70

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Solution

The fourth proportional to 70,013.20, 105,019.58 and 17,422.70 is: 26,134.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,013.20 : 105,019.58 = 17,422.70 : x
  2. Step 2: Convert to fraction form
    70,013.20/105,019.58 = 17,422.70/x
  3. Step 3: Cross multiply
    70,013.20x = 105,019.58 × 17,422.70
  4. Step 4: Simplify right side
    70,013.20x = 1,829,724,636.47
  5. Step 5: Solve for x
    x = 1,829,724,636.47/70,013.20
  6. Step 6: Final answer
    x = 26,134.00

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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.