Home / 46,785.41-70,178.64-13,505.78

Finding the Fourth Proportional to 46,785.41, 70,178.64 and 13,505.78

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Solution

The fourth proportional to 46,785.41, 70,178.64 and 13,505.78 is: 20,258.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,785.41 : 70,178.64 = 13,505.78 : x
  2. Step 2: Convert to fraction form
    46,785.41/70,178.64 = 13,505.78/x
  3. Step 3: Cross multiply
    46,785.41x = 70,178.64 × 13,505.78
  4. Step 4: Simplify right side
    46,785.41x = 947,817,397.34
  5. Step 5: Solve for x
    x = 947,817,397.34/46,785.41
  6. Step 6: Final answer
    x = 20,258.82

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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.