Home / 19,631.04-29,430.02-8,529.40

Finding the Fourth Proportional to 19,631.04, 29,430.02 and 8,529.40

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Solution

The fourth proportional to 19,631.04, 29,430.02 and 8,529.40 is: 12,786.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.04 : 29,430.02 = 8,529.40 : x
  2. Step 2: Convert to fraction form
    19,631.04/29,430.02 = 8,529.40/x
  3. Step 3: Cross multiply
    19,631.04x = 29,430.02 × 8,529.40
  4. Step 4: Simplify right side
    19,631.04x = 251,020,412.59
  5. Step 5: Solve for x
    x = 251,020,412.59/19,631.04
  6. Step 6: Final answer
    x = 12,786.91

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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.