Home / 39,485.56-59,225.88-13,188.08

Finding the Fourth Proportional to 39,485.56, 59,225.88 and 13,188.08

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Solution

The fourth proportional to 39,485.56, 59,225.88 and 13,188.08 is: 19,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,485.56 : 59,225.88 = 13,188.08 : x
  2. Step 2: Convert to fraction form
    39,485.56/59,225.88 = 13,188.08/x
  3. Step 3: Cross multiply
    39,485.56x = 59,225.88 × 13,188.08
  4. Step 4: Simplify right side
    39,485.56x = 781,075,643.51
  5. Step 5: Solve for x
    x = 781,075,643.51/39,485.56
  6. Step 6: Final answer
    x = 19,781.30

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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.