Home / 28,347.49-42,521.64-10,818.28

Finding the Fourth Proportional to 28,347.49, 42,521.64 and 10,818.28

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Solution

The fourth proportional to 28,347.49, 42,521.64 and 10,818.28 is: 16,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.49 : 42,521.64 = 10,818.28 : x
  2. Step 2: Convert to fraction form
    28,347.49/42,521.64 = 10,818.28/x
  3. Step 3: Cross multiply
    28,347.49x = 42,521.64 × 10,818.28
  4. Step 4: Simplify right side
    28,347.49x = 460,011,007.58
  5. Step 5: Solve for x
    x = 460,011,007.58/28,347.49
  6. Step 6: Final answer
    x = 16,227.57

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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.