Home / 39,875.80-59,813.70-13,581.40

Finding the Fourth Proportional to 39,875.80, 59,813.70 and 13,581.40

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Solution

The fourth proportional to 39,875.80, 59,813.70 and 13,581.40 is: 20,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,875.80 : 59,813.70 = 13,581.40 : x
  2. Step 2: Convert to fraction form
    39,875.80/59,813.70 = 13,581.40/x
  3. Step 3: Cross multiply
    39,875.80x = 59,813.70 × 13,581.40
  4. Step 4: Simplify right side
    39,875.80x = 812,353,785.18
  5. Step 5: Solve for x
    x = 812,353,785.18/39,875.80
  6. Step 6: Final answer
    x = 20,372.10

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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.