Home / 22,678.36-31,263.15-15,851.18

Finding the Fourth Proportional to 22,678.36, 31,263.15 and 15,851.18

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Solution

The fourth proportional to 22,678.36, 31,263.15 and 15,851.18 is: 21,851.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.36 : 31,263.15 = 15,851.18 : x
  2. Step 2: Convert to fraction form
    22,678.36/31,263.15 = 15,851.18/x
  3. Step 3: Cross multiply
    22,678.36x = 31,263.15 × 15,851.18
  4. Step 4: Simplify right side
    22,678.36x = 495,557,818.02
  5. Step 5: Solve for x
    x = 495,557,818.02/22,678.36
  6. Step 6: Final answer
    x = 21,851.57

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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.