Home / 19,411.60-29,123.55-6,931.35

Finding the Fourth Proportional to 19,411.60, 29,123.55 and 6,931.35

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Solution

The fourth proportional to 19,411.60, 29,123.55 and 6,931.35 is: 10,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.60 : 29,123.55 = 6,931.35 : x
  2. Step 2: Convert to fraction form
    19,411.60/29,123.55 = 6,931.35/x
  3. Step 3: Cross multiply
    19,411.60x = 29,123.55 × 6,931.35
  4. Step 4: Simplify right side
    19,411.60x = 201,865,518.29
  5. Step 5: Solve for x
    x = 201,865,518.29/19,411.60
  6. Step 6: Final answer
    x = 10,399.22

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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.