Home / 30,970.58-42,739.86-17,541.50

Finding the Fourth Proportional to 30,970.58, 42,739.86 and 17,541.50

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Solution

The fourth proportional to 30,970.58, 42,739.86 and 17,541.50 is: 24,207.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,970.58 : 42,739.86 = 17,541.50 : x
  2. Step 2: Convert to fraction form
    30,970.58/42,739.86 = 17,541.50/x
  3. Step 3: Cross multiply
    30,970.58x = 42,739.86 × 17,541.50
  4. Step 4: Simplify right side
    30,970.58x = 749,721,254.19
  5. Step 5: Solve for x
    x = 749,721,254.19/30,970.58
  6. Step 6: Final answer
    x = 24,207.53

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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.