Home / 23,156.40-31,955.58-12,545.40

Finding the Fourth Proportional to 23,156.40, 31,955.58 and 12,545.40

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Solution

The fourth proportional to 23,156.40, 31,955.58 and 12,545.40 is: 17,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,156.40 : 31,955.58 = 12,545.40 : x
  2. Step 2: Convert to fraction form
    23,156.40/31,955.58 = 12,545.40/x
  3. Step 3: Cross multiply
    23,156.40x = 31,955.58 × 12,545.40
  4. Step 4: Simplify right side
    23,156.40x = 400,895,533.33
  5. Step 5: Solve for x
    x = 400,895,533.33/23,156.40
  6. Step 6: Final answer
    x = 17,312.52

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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.