Home / 30,468.28-42,050.98-18,535.36

Finding the Fourth Proportional to 30,468.28, 42,050.98 and 18,535.36

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Solution

The fourth proportional to 30,468.28, 42,050.98 and 18,535.36 is: 25,581.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,468.28 : 42,050.98 = 18,535.36 : x
  2. Step 2: Convert to fraction form
    30,468.28/42,050.98 = 18,535.36/x
  3. Step 3: Cross multiply
    30,468.28x = 42,050.98 × 18,535.36
  4. Step 4: Simplify right side
    30,468.28x = 779,430,052.65
  5. Step 5: Solve for x
    x = 779,430,052.65/30,468.28
  6. Step 6: Final answer
    x = 25,581.69

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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.