Home / 30,258.41-45,400.10-13,382.55

Finding the Fourth Proportional to 30,258.41, 45,400.10 and 13,382.55

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Solution

The fourth proportional to 30,258.41, 45,400.10 and 13,382.55 is: 20,079.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,258.41 : 45,400.10 = 13,382.55 : x
  2. Step 2: Convert to fraction form
    30,258.41/45,400.10 = 13,382.55/x
  3. Step 3: Cross multiply
    30,258.41x = 45,400.10 × 13,382.55
  4. Step 4: Simplify right side
    30,258.41x = 607,569,041.34
  5. Step 5: Solve for x
    x = 607,569,041.34/30,258.41
  6. Step 6: Final answer
    x = 20,079.35

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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.