Home / 30,288.28-45,417.16-17,642.10

Finding the Fourth Proportional to 30,288.28, 45,417.16 and 17,642.10

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Solution

The fourth proportional to 30,288.28, 45,417.16 and 17,642.10 is: 26,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.28 : 45,417.16 = 17,642.10 : x
  2. Step 2: Convert to fraction form
    30,288.28/45,417.16 = 17,642.10/x
  3. Step 3: Cross multiply
    30,288.28x = 45,417.16 × 17,642.10
  4. Step 4: Simplify right side
    30,288.28x = 801,254,171.57
  5. Step 5: Solve for x
    x = 801,254,171.57/30,288.28
  6. Step 6: Final answer
    x = 26,454.27

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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.