Home / 25,368.30-35,004.16-15,930.18

Finding the Fourth Proportional to 25,368.30, 35,004.16 and 15,930.18

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Solution

The fourth proportional to 25,368.30, 35,004.16 and 15,930.18 is: 21,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,368.30 : 35,004.16 = 15,930.18 : x
  2. Step 2: Convert to fraction form
    25,368.30/35,004.16 = 15,930.18/x
  3. Step 3: Cross multiply
    25,368.30x = 35,004.16 × 15,930.18
  4. Step 4: Simplify right side
    25,368.30x = 557,622,569.55
  5. Step 5: Solve for x
    x = 557,622,569.55/25,368.30
  6. Step 6: Final answer
    x = 21,981.08

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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.