Home / 30,860.28-42,547.41-25,189.20

Finding the Fourth Proportional to 30,860.28, 42,547.41 and 25,189.20

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Solution

The fourth proportional to 30,860.28, 42,547.41 and 25,189.20 is: 34,728.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.28 : 42,547.41 = 25,189.20 : x
  2. Step 2: Convert to fraction form
    30,860.28/42,547.41 = 25,189.20/x
  3. Step 3: Cross multiply
    30,860.28x = 42,547.41 × 25,189.20
  4. Step 4: Simplify right side
    30,860.28x = 1,071,735,219.97
  5. Step 5: Solve for x
    x = 1,071,735,219.97/30,860.28
  6. Step 6: Final answer
    x = 34,728.63

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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.