Home / 39,970.12-59,957.34-10,387.16

Finding the Fourth Proportional to 39,970.12, 59,957.34 and 10,387.16

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Solution

The fourth proportional to 39,970.12, 59,957.34 and 10,387.16 is: 15,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.12 : 59,957.34 = 10,387.16 : x
  2. Step 2: Convert to fraction form
    39,970.12/59,957.34 = 10,387.16/x
  3. Step 3: Cross multiply
    39,970.12x = 59,957.34 × 10,387.16
  4. Step 4: Simplify right side
    39,970.12x = 622,786,483.75
  5. Step 5: Solve for x
    x = 622,786,483.75/39,970.12
  6. Step 6: Final answer
    x = 15,581.30

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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.