Home / 31,526.42-43,501.65-18,775.70

Finding the Fourth Proportional to 31,526.42, 43,501.65 and 18,775.70

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Solution

The fourth proportional to 31,526.42, 43,501.65 and 18,775.70 is: 25,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.42 : 43,501.65 = 18,775.70 : x
  2. Step 2: Convert to fraction form
    31,526.42/43,501.65 = 18,775.70/x
  3. Step 3: Cross multiply
    31,526.42x = 43,501.65 × 18,775.70
  4. Step 4: Simplify right side
    31,526.42x = 816,773,929.91
  5. Step 5: Solve for x
    x = 816,773,929.91/31,526.42
  6. Step 6: Final answer
    x = 25,907.60

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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.