Home / 40,721.04-61,030.80-18,528.48

Finding the Fourth Proportional to 40,721.04, 61,030.80 and 18,528.48

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Solution

The fourth proportional to 40,721.04, 61,030.80 and 18,528.48 is: 27,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,721.04 : 61,030.80 = 18,528.48 : x
  2. Step 2: Convert to fraction form
    40,721.04/61,030.80 = 18,528.48/x
  3. Step 3: Cross multiply
    40,721.04x = 61,030.80 × 18,528.48
  4. Step 4: Simplify right side
    40,721.04x = 1,130,807,957.18
  5. Step 5: Solve for x
    x = 1,130,807,957.18/40,721.04
  6. Step 6: Final answer
    x = 27,769.62

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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.