Home / 22,411.04-30,925.56-12,977.84

Finding the Fourth Proportional to 22,411.04, 30,925.56 and 12,977.84

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Solution

The fourth proportional to 22,411.04, 30,925.56 and 12,977.84 is: 17,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,411.04 : 30,925.56 = 12,977.84 : x
  2. Step 2: Convert to fraction form
    22,411.04/30,925.56 = 12,977.84/x
  3. Step 3: Cross multiply
    22,411.04x = 30,925.56 × 12,977.84
  4. Step 4: Simplify right side
    22,411.04x = 401,346,969.59
  5. Step 5: Solve for x
    x = 401,346,969.59/22,411.04
  6. Step 6: Final answer
    x = 17,908.45

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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.