Home / 21,047.04-31,557.60-19,051.20

Finding the Fourth Proportional to 21,047.04, 31,557.60 and 19,051.20

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Solution

The fourth proportional to 21,047.04, 31,557.60 and 19,051.20 is: 28,565.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047.04 : 31,557.60 = 19,051.20 : x
  2. Step 2: Convert to fraction form
    21,047.04/31,557.60 = 19,051.20/x
  3. Step 3: Cross multiply
    21,047.04x = 31,557.60 × 19,051.20
  4. Step 4: Simplify right side
    21,047.04x = 601,210,149.12
  5. Step 5: Solve for x
    x = 601,210,149.12/21,047.04
  6. Step 6: Final answer
    x = 28,565.07

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1.5x scale

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.