Home / 39,139.19-58,718.50-11,437.19

Finding the Fourth Proportional to 39,139.19, 58,718.50 and 11,437.19

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Solution

The fourth proportional to 39,139.19, 58,718.50 and 11,437.19 is: 17,158.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.19 : 58,718.50 = 11,437.19 : x
  2. Step 2: Convert to fraction form
    39,139.19/58,718.50 = 11,437.19/x
  3. Step 3: Cross multiply
    39,139.19x = 58,718.50 × 11,437.19
  4. Step 4: Simplify right side
    39,139.19x = 671,574,641.02
  5. Step 5: Solve for x
    x = 671,574,641.02/39,139.19
  6. Step 6: Final answer
    x = 17,158.62

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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.