Home / 28,281.72-42,417.36-10,747.32

Finding the Fourth Proportional to 28,281.72, 42,417.36 and 10,747.32

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Solution

The fourth proportional to 28,281.72, 42,417.36 and 10,747.32 is: 16,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.72 : 42,417.36 = 10,747.32 : x
  2. Step 2: Convert to fraction form
    28,281.72/42,417.36 = 10,747.32/x
  3. Step 3: Cross multiply
    28,281.72x = 42,417.36 × 10,747.32
  4. Step 4: Simplify right side
    28,281.72x = 455,872,941.48
  5. Step 5: Solve for x
    x = 455,872,941.48/28,281.72
  6. Step 6: Final answer
    x = 16,119.00

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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.