Home / 42,969.30-64,457.02-17,984.20

Finding the Fourth Proportional to 42,969.30, 64,457.02 and 17,984.20

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Solution

The fourth proportional to 42,969.30, 64,457.02 and 17,984.20 is: 26,977.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,969.30 : 64,457.02 = 17,984.20 : x
  2. Step 2: Convert to fraction form
    42,969.30/64,457.02 = 17,984.20/x
  3. Step 3: Cross multiply
    42,969.30x = 64,457.02 × 17,984.20
  4. Step 4: Simplify right side
    42,969.30x = 1,159,207,939.08
  5. Step 5: Solve for x
    x = 1,159,207,939.08/42,969.30
  6. Step 6: Final answer
    x = 26,977.58

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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.