Home / 30,471.54-42,050.40-18,532.68

Finding the Fourth Proportional to 30,471.54, 42,050.40 and 18,532.68

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Solution

The fourth proportional to 30,471.54, 42,050.40 and 18,532.68 is: 25,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,471.54 : 42,050.40 = 18,532.68 : x
  2. Step 2: Convert to fraction form
    30,471.54/42,050.40 = 18,532.68/x
  3. Step 3: Cross multiply
    30,471.54x = 42,050.40 × 18,532.68
  4. Step 4: Simplify right side
    30,471.54x = 779,306,607.07
  5. Step 5: Solve for x
    x = 779,306,607.07/30,471.54
  6. Step 6: Final answer
    x = 25,574.90

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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.