Home / 40,507.40-55,898.91-22,109.81

Finding the Fourth Proportional to 40,507.40, 55,898.91 and 22,109.81

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Solution

The fourth proportional to 40,507.40, 55,898.91 and 22,109.81 is: 30,510.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,507.40 : 55,898.91 = 22,109.81 : x
  2. Step 2: Convert to fraction form
    40,507.40/55,898.91 = 22,109.81/x
  3. Step 3: Cross multiply
    40,507.40x = 55,898.91 × 22,109.81
  4. Step 4: Simplify right side
    40,507.40x = 1,235,913,999.81
  5. Step 5: Solve for x
    x = 1,235,913,999.81/40,507.40
  6. Step 6: Final answer
    x = 30,510.82

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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.