Home / 28,133.57-42,188.05-13,346.71

Finding the Fourth Proportional to 28,133.57, 42,188.05 and 13,346.71

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Solution

The fourth proportional to 28,133.57, 42,188.05 and 13,346.71 is: 20,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.57 : 42,188.05 = 13,346.71 : x
  2. Step 2: Convert to fraction form
    28,133.57/42,188.05 = 13,346.71/x
  3. Step 3: Cross multiply
    28,133.57x = 42,188.05 × 13,346.71
  4. Step 4: Simplify right side
    28,133.57x = 563,071,424.51
  5. Step 5: Solve for x
    x = 563,071,424.51/28,133.57
  6. Step 6: Final answer
    x = 20,014.22

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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.