Home / 42,258.71-58,315.20-23,138.13

Finding the Fourth Proportional to 42,258.71, 58,315.20 and 23,138.13

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Solution

The fourth proportional to 42,258.71, 58,315.20 and 23,138.13 is: 31,929.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,258.71 : 58,315.20 = 23,138.13 : x
  2. Step 2: Convert to fraction form
    42,258.71/58,315.20 = 23,138.13/x
  3. Step 3: Cross multiply
    42,258.71x = 58,315.20 × 23,138.13
  4. Step 4: Simplify right side
    42,258.71x = 1,349,304,678.58
  5. Step 5: Solve for x
    x = 1,349,304,678.58/42,258.71
  6. Step 6: Final answer
    x = 31,929.63

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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.