Home / 30,434.73-42,004.74-18,501.81

Finding the Fourth Proportional to 30,434.73, 42,004.74 and 18,501.81

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Solution

The fourth proportional to 30,434.73, 42,004.74 and 18,501.81 is: 25,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,434.73 : 42,004.74 = 18,501.81 : x
  2. Step 2: Convert to fraction form
    30,434.73/42,004.74 = 18,501.81/x
  3. Step 3: Cross multiply
    30,434.73x = 42,004.74 × 18,501.81
  4. Step 4: Simplify right side
    30,434.73x = 777,163,718.58
  5. Step 5: Solve for x
    x = 777,163,718.58/30,434.73
  6. Step 6: Final answer
    x = 25,535.42

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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.