Home / 70,005.86-105,008.57-17,415.35

Finding the Fourth Proportional to 70,005.86, 105,008.57 and 17,415.35

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Solution

The fourth proportional to 70,005.86, 105,008.57 and 17,415.35 is: 26,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,005.86 : 105,008.57 = 17,415.35 : x
  2. Step 2: Convert to fraction form
    70,005.86/105,008.57 = 17,415.35/x
  3. Step 3: Cross multiply
    70,005.86x = 105,008.57 × 17,415.35
  4. Step 4: Simplify right side
    70,005.86x = 1,828,760,999.55
  5. Step 5: Solve for x
    x = 1,828,760,999.55/70,005.86
  6. Step 6: Final answer
    x = 26,122.97

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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.