Home / 40,686.71-61,061.31-18,204.35

Finding the Fourth Proportional to 40,686.71, 61,061.31 and 18,204.35

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Solution

The fourth proportional to 40,686.71, 61,061.31 and 18,204.35 is: 27,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,686.71 : 61,061.31 = 18,204.35 : x
  2. Step 2: Convert to fraction form
    40,686.71/61,061.31 = 18,204.35/x
  3. Step 3: Cross multiply
    40,686.71x = 61,061.31 × 18,204.35
  4. Step 4: Simplify right side
    40,686.71x = 1,111,581,153.39
  5. Step 5: Solve for x
    x = 1,111,581,153.39/40,686.71
  6. Step 6: Final answer
    x = 27,320.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.