Home / 47,258.05-70,886.85-13,978.29

Finding the Fourth Proportional to 47,258.05, 70,886.85 and 13,978.29

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Solution

The fourth proportional to 47,258.05, 70,886.85 and 13,978.29 is: 20,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,258.05 : 70,886.85 = 13,978.29 : x
  2. Step 2: Convert to fraction form
    47,258.05/70,886.85 = 13,978.29/x
  3. Step 3: Cross multiply
    47,258.05x = 70,886.85 × 13,978.29
  4. Step 4: Simplify right side
    47,258.05x = 990,876,761.16
  5. Step 5: Solve for x
    x = 990,876,761.16/47,258.05
  6. Step 6: Final answer
    x = 20,967.36

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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.