Home / 39,386.10-59,117.55-19,686.90

Finding the Fourth Proportional to 39,386.10, 59,117.55 and 19,686.90

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Solution

The fourth proportional to 39,386.10, 59,117.55 and 19,686.90 is: 29,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,386.10 : 59,117.55 = 19,686.90 : x
  2. Step 2: Convert to fraction form
    39,386.10/59,117.55 = 19,686.90/x
  3. Step 3: Cross multiply
    39,386.10x = 59,117.55 × 19,686.90
  4. Step 4: Simplify right side
    39,386.10x = 1,163,841,295.10
  5. Step 5: Solve for x
    x = 1,163,841,295.10/39,386.10
  6. Step 6: Final answer
    x = 29,549.54

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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.