Home / 32,802.36-45,272.16-20,870.88

Finding the Fourth Proportional to 32,802.36, 45,272.16 and 20,870.88

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Solution

The fourth proportional to 32,802.36, 45,272.16 and 20,870.88 is: 28,804.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,802.36 : 45,272.16 = 20,870.88 : x
  2. Step 2: Convert to fraction form
    32,802.36/45,272.16 = 20,870.88/x
  3. Step 3: Cross multiply
    32,802.36x = 45,272.16 × 20,870.88
  4. Step 4: Simplify right side
    32,802.36x = 944,869,818.70
  5. Step 5: Solve for x
    x = 944,869,818.70/32,802.36
  6. Step 6: Final answer
    x = 28,804.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.