Home / 27,903.69-38,506.98-15,156.77

Finding the Fourth Proportional to 27,903.69, 38,506.98 and 15,156.77

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Solution

The fourth proportional to 27,903.69, 38,506.98 and 15,156.77 is: 20,916.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,903.69 : 38,506.98 = 15,156.77 : x
  2. Step 2: Convert to fraction form
    27,903.69/38,506.98 = 15,156.77/x
  3. Step 3: Cross multiply
    27,903.69x = 38,506.98 × 15,156.77
  4. Step 4: Simplify right side
    27,903.69x = 583,641,439.25
  5. Step 5: Solve for x
    x = 583,641,439.25/27,903.69
  6. Step 6: Final answer
    x = 20,916.28

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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.