Home / 30,386.10-45,579.15-17,045.40

Finding the Fourth Proportional to 30,386.10, 45,579.15 and 17,045.40

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Solution

The fourth proportional to 30,386.10, 45,579.15 and 17,045.40 is: 25,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,386.10 : 45,579.15 = 17,045.40 : x
  2. Step 2: Convert to fraction form
    30,386.10/45,579.15 = 17,045.40/x
  3. Step 3: Cross multiply
    30,386.10x = 45,579.15 × 17,045.40
  4. Step 4: Simplify right side
    30,386.10x = 776,914,843.41
  5. Step 5: Solve for x
    x = 776,914,843.41/30,386.10
  6. Step 6: Final answer
    x = 25,568.10

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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.