Home / 30,602.46-42,258.32-19,137.02

Finding the Fourth Proportional to 30,602.46, 42,258.32 and 19,137.02

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Solution

The fourth proportional to 30,602.46, 42,258.32 and 19,137.02 is: 26,425.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602.46 : 42,258.32 = 19,137.02 : x
  2. Step 2: Convert to fraction form
    30,602.46/42,258.32 = 19,137.02/x
  3. Step 3: Cross multiply
    30,602.46x = 42,258.32 × 19,137.02
  4. Step 4: Simplify right side
    30,602.46x = 808,698,315.01
  5. Step 5: Solve for x
    x = 808,698,315.01/30,602.46
  6. Step 6: Final answer
    x = 26,425.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.