Home / 31,526.07-43,503.85-18,780.18

Finding the Fourth Proportional to 31,526.07, 43,503.85 and 18,780.18

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Solution

The fourth proportional to 31,526.07, 43,503.85 and 18,780.18 is: 25,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.07 : 43,503.85 = 18,780.18 : x
  2. Step 2: Convert to fraction form
    31,526.07/43,503.85 = 18,780.18/x
  3. Step 3: Cross multiply
    31,526.07x = 43,503.85 × 18,780.18
  4. Step 4: Simplify right side
    31,526.07x = 817,010,133.69
  5. Step 5: Solve for x
    x = 817,010,133.69/31,526.07
  6. Step 6: Final answer
    x = 25,915.38

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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.