Home / 31,377.02-47,055.51-10,312.20

Finding the Fourth Proportional to 31,377.02, 47,055.51 and 10,312.20

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Solution

The fourth proportional to 31,377.02, 47,055.51 and 10,312.20 is: 15,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,377.02 : 47,055.51 = 10,312.20 : x
  2. Step 2: Convert to fraction form
    31,377.02/47,055.51 = 10,312.20/x
  3. Step 3: Cross multiply
    31,377.02x = 47,055.51 × 10,312.20
  4. Step 4: Simplify right side
    31,377.02x = 485,245,830.22
  5. Step 5: Solve for x
    x = 485,245,830.22/31,377.02
  6. Step 6: Final answer
    x = 15,465.01

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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.