Home / 42,970.04-64,458.14-17,984.94

Finding the Fourth Proportional to 42,970.04, 64,458.14 and 17,984.94

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Solution

The fourth proportional to 42,970.04, 64,458.14 and 17,984.94 is: 26,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,970.04 : 64,458.14 = 17,984.94 : x
  2. Step 2: Convert to fraction form
    42,970.04/64,458.14 = 17,984.94/x
  3. Step 3: Cross multiply
    42,970.04x = 64,458.14 × 17,984.94
  4. Step 4: Simplify right side
    42,970.04x = 1,159,275,780.41
  5. Step 5: Solve for x
    x = 1,159,275,780.41/42,970.04
  6. Step 6: Final answer
    x = 26,978.70

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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.