Home / 40,187.71-55,457.85-22,281.58

Finding the Fourth Proportional to 40,187.71, 55,457.85 and 22,281.58

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Solution

The fourth proportional to 40,187.71, 55,457.85 and 22,281.58 is: 30,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,187.71 : 55,457.85 = 22,281.58 : x
  2. Step 2: Convert to fraction form
    40,187.71/55,457.85 = 22,281.58/x
  3. Step 3: Cross multiply
    40,187.71x = 55,457.85 × 22,281.58
  4. Step 4: Simplify right side
    40,187.71x = 1,235,688,521.40
  5. Step 5: Solve for x
    x = 1,235,688,521.40/40,187.71
  6. Step 6: Final answer
    x = 30,747.92

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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.