Home / 19,368.40-29,045.20-8,280.24

Finding the Fourth Proportional to 19,368.40, 29,045.20 and 8,280.24

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Solution

The fourth proportional to 19,368.40, 29,045.20 and 8,280.24 is: 12,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.40 : 29,045.20 = 8,280.24 : x
  2. Step 2: Convert to fraction form
    19,368.40/29,045.20 = 8,280.24/x
  3. Step 3: Cross multiply
    19,368.40x = 29,045.20 × 8,280.24
  4. Step 4: Simplify right side
    19,368.40x = 240,501,226.85
  5. Step 5: Solve for x
    x = 240,501,226.85/19,368.40
  6. Step 6: Final answer
    x = 12,417.20

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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.