Home / 28,293.86-42,445.26-9,312.56

Finding the Fourth Proportional to 28,293.86, 42,445.26 and 9,312.56

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Solution

The fourth proportional to 28,293.86, 42,445.26 and 9,312.56 is: 13,970.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.86 : 42,445.26 = 9,312.56 : x
  2. Step 2: Convert to fraction form
    28,293.86/42,445.26 = 9,312.56/x
  3. Step 3: Cross multiply
    28,293.86x = 42,445.26 × 9,312.56
  4. Step 4: Simplify right side
    28,293.86x = 395,274,030.47
  5. Step 5: Solve for x
    x = 395,274,030.47/28,293.86
  6. Step 6: Final answer
    x = 13,970.31

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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.