Home / 28,555.72-42,851.86-15,417.24

Finding the Fourth Proportional to 28,555.72, 42,851.86 and 15,417.24

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Solution

The fourth proportional to 28,555.72, 42,851.86 and 15,417.24 is: 23,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.72 : 42,851.86 = 15,417.24 : x
  2. Step 2: Convert to fraction form
    28,555.72/42,851.86 = 15,417.24/x
  3. Step 3: Cross multiply
    28,555.72x = 42,851.86 × 15,417.24
  4. Step 4: Simplify right side
    28,555.72x = 660,657,410.07
  5. Step 5: Solve for x
    x = 660,657,410.07/28,555.72
  6. Step 6: Final answer
    x = 23,135.73

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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.