Home / 28,278.52-42,417.80-9,810.52

Finding the Fourth Proportional to 28,278.52, 42,417.80 and 9,810.52

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Solution

The fourth proportional to 28,278.52, 42,417.80 and 9,810.52 is: 14,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.52 : 42,417.80 = 9,810.52 : x
  2. Step 2: Convert to fraction form
    28,278.52/42,417.80 = 9,810.52/x
  3. Step 3: Cross multiply
    28,278.52x = 42,417.80 × 9,810.52
  4. Step 4: Simplify right side
    28,278.52x = 416,140,675.26
  5. Step 5: Solve for x
    x = 416,140,675.26/28,278.52
  6. Step 6: Final answer
    x = 14,715.79

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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.