Home / 19,127.04-28,802.40-16,691.04

Finding the Fourth Proportional to 19,127.04, 28,802.40 and 16,691.04

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Solution

The fourth proportional to 19,127.04, 28,802.40 and 16,691.04 is: 25,134.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.04 : 28,802.40 = 16,691.04 : x
  2. Step 2: Convert to fraction form
    19,127.04/28,802.40 = 16,691.04/x
  3. Step 3: Cross multiply
    19,127.04x = 28,802.40 × 16,691.04
  4. Step 4: Simplify right side
    19,127.04x = 480,742,010.50
  5. Step 5: Solve for x
    x = 480,742,010.50/19,127.04
  6. Step 6: Final answer
    x = 25,134.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.