Home / 34,364.84-47,417.70-20,928.68

Finding the Fourth Proportional to 34,364.84, 47,417.70 and 20,928.68

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Solution

The fourth proportional to 34,364.84, 47,417.70 and 20,928.68 is: 28,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,364.84 : 47,417.70 = 20,928.68 : x
  2. Step 2: Convert to fraction form
    34,364.84/47,417.70 = 20,928.68/x
  3. Step 3: Cross multiply
    34,364.84x = 47,417.70 × 20,928.68
  4. Step 4: Simplify right side
    34,364.84x = 992,389,869.64
  5. Step 5: Solve for x
    x = 992,389,869.64/34,364.84
  6. Step 6: Final answer
    x = 28,878.06

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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.