Home / 42,971.04-64,459.67-17,985.95

Finding the Fourth Proportional to 42,971.04, 64,459.67 and 17,985.95

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Solution

The fourth proportional to 42,971.04, 64,459.67 and 17,985.95 is: 26,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971.04 : 64,459.67 = 17,985.95 : x
  2. Step 2: Convert to fraction form
    42,971.04/64,459.67 = 17,985.95/x
  3. Step 3: Cross multiply
    42,971.04x = 64,459.67 × 17,985.95
  4. Step 4: Simplify right side
    42,971.04x = 1,159,368,231.13
  5. Step 5: Solve for x
    x = 1,159,368,231.13/42,971.04
  6. Step 6: Final answer
    x = 26,980.22

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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.